4. Mental Ability

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MENTAL ABILITY DPP Class –VII

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S E S S I O N - 2 0 1 2 - 1 3

TOPIC : NUMBER SERIES

Directions (1-5) : In each of the following questions, one number is missing in the series. You have to understand the pattern of the series and insert the number.

1. 4, 7, 11, 18, 29, 47, …, 123, 199 (A) 76 (B) 70 (C) 84 (D) 95 2. 5, 14, 41, 122, 365, ? (A) 1194 (B) 1094 (C) 1095 (D) 1093 3. 4, 2, 5, 1, 6, ? (A) 5 (B) 2 (C) 4 (D) 0 4. 2, 3, 10, 15, 26, 35, 50, 63, ? (A) 80 (B) 82 (C) 83 (D) 84 5. 128, 110, 90, ?, 44 (A) 37 (B) 55 (C) 68 (D) 44

Directions (6 - 7) : In each of the following questions one number is wrong in the series, find out the wrong number. 6. 2, 3, 12, 37, 86, 166, 288 (A) 2 (B) 166 (C) 86 (D) 37 7. 444, 300, 200, 136, 87, 84, 80 (A) 200 (B) 136 (C) 87 (D) 80 8. 572, 284, 140, 72, 32, 14, 5 (A) 14 (B) 32 (C) 72 (D) 5 9. 376, 188, 88, 40, 16, 4, – 2 (A) 4 (B) 16 (C) 40 (D) 188 10. 3, 7, 14, 27, 53, 107, 213 (A) 14 (B) 7 (C) 27 (D) 53

TOPIC : ALPHABET / LETTER SERIES

Directions (11 to 15) : In each of the following questions, one term is missing in the series. You have to understand the pattern of the series and insert the missing term.

11. A Z, BY, CX, DW, ?, FU

(A) EV (B) DU (C) FV (D) None of these

12. ABD, CEH, EHL, ?

(A) GKN (B) GKP (C) GJP (D) JGP

13. ZYX, BAZ, DCB, FED, ?

(A) GHF (B) FGH (C) FFG (D HGF

14. 1 BR, 2 EO, 6 HL, 15 KI, ?

(A) 22 NF (B) 31 NF (C) 31 NE (D) 28 NF

15. AD9, BF16, CH25, ?, EL49

(A) DJ36 (B) DJ49 (C) JD36 (D) DM49

Directions : (16 to 20) Find the wrong term(s) — 16. ECA, JHF, OMK, TQP, YWU

(A) ECA (B) JHF (C) TQP (D) YWU

17. PON, RQP, TSR, VVT, XWV, ZYX

(A) VVT (B) TSR (C) XWV (D) RQP

18. P 3 C, R 5 F, T 8 I, V 12 L, X 18 O, Z 23 R

(A) V 12 L (B) X 18 O (C) Z 23 R (D) R 5 F

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22. bc –– b –– c –– b –– ccb

(A) cbcb (B) bbcb (C) cbbc (D) bcbc

23. –– bcc –– ac –– aabb –– ab –– cc :

(A) aabca (B) abaca (C) bacab (D) bcaca

24. –– acca –– ccca –– acccc –– aaa :

(A) acca (B) caaa (C) ccaa (D) caac

25. a – b a a – a a – – a b

(A) a a a a (B) b a a a (C) b b a a (D) a b b a

TOPIC : MISSING TERM IN FIGURE

Directions (26 to 30) : These questions are based on different number puzzles. Few numbers are inserted in a figure which follow a particular rule for their placement at different places of the figure. Students are then asked to insert a missing number in the other similar figure on the basis of the method used. 26. 25 ? 27 5 8 7 4 4 3 3 2 7 1 5 1 (A) 28 (B) 40 (C) 39 (D) 42 27. 17 18 16 25 38 89 6 8 ? (A) 19 (B) 17 (C) 15 (D) 13 28. 4 5 13 ? 4 2 1 6 7 4 3 8 (A) 1 (B) 2 (C) 3 (D) 4 29. 33 2 4 2 3 54 3 5 2 4 ? 6 4 5 3 (A) 94 (B) 86 (C) 82 (D) 78 30. 4 41 ? 5 2 6 7 1 5 (A) 16 (B) 9 (C) 85 (D) 112

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S E S S I O N - 2 0 1 2 - 1 3

TOPIC : ALPHABET-TEST

1. Arrange the given words in alphabetical order and tick the one that comes first :

(A) Cloud (B) Middle (C) Grunt (D) Chain

2. Arrange the given words in alphabetical order and tick the one that comes last :

(A) Abandon (B) Actuate (C) Accumulate (D) Acquit

3. Find which one word can be made from the letters of the given word. IMMEDIATELY

(A) DIALECT (B) LIMITED (C) DIAMETER (D) DICTATE

Directions (4-10) : Each of the following questions is based on the following alphabet series.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

4. Which letter is the seventh to the right of the thirteenth letter from your left ?

(A) S (B) T (C) U (D) V

5. Which letter will be the sixth to the right of the eleventh letter from the right end of the alphabet series :

(A) K (B) V (C) J (D) U

6. Which letter is midway between 22nd letter from the left and 21st letter from the right :

(A) N (B) M (C) O (D) P

7. If the above alphabet series is written in the reverse order, which will be the eighth letter to the right of O :

(A) F (B) G (C) V (D) W

8. If the second half of the given alphabet series is written in reverse order, which letter will be seventh to the right of the twelfth letter from the left end :

(A) R (B) S (C) U (D) V

9. If the first and the second letters interchange their positions and similarly the third and the fourth letters, the fifth and the sixth letters and so on, which letter will be the seventeenth from your right :

(A) F (B) H (C) I (D) J

10. Four of the following are alike in regard to their position in the alphabet series and hence form a group which is the one that does not belong to the group ?

(A) FE (B) ML (C) JK (D) VX

11. Arrange the following group of numbers such that when arranged in a specific order, meaningful word is formed.

. R M N B U E 1 2 3 4 5 6

(A) 1,5,4,2,6,3 (B) 2,6,3,4,1,5 (C) 3,5,2,4,6,1 (D) 4,6,3,2,1,5

12. A meaningful word starting with A is made from the first, the second, the fourth, the fifth and sixth letters of the word CONTRACT, which of the following is the middle letter of the word ?

(A) C (B) T (C) O (D) R

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(A) BARUZK (B) FAVUDL (C) CBSVAM (D) CCSWAN 16. If in a certain language KNIFE is coded as HNFFB, how is DOCTOR coded in that language ?

(A) ROTCOD (B) AOZTLR (C) CTORDO (D) CODTOR

17. In a certain code, REFRIGERATOR, is coded as ROTAREGIRFER. Which word would be coded as NOITINUMMA ?

(A) ANMOMIUTNI (B) AMNTOMUIIN (C) AMMUNITION (D) NMMUNITIOA

18. If FULFNHW is the coded for CRICKET, then EULGH is the code for which word ?

(A) PRIDE (B) BRIDE (C) BLADE (D) BLIND

19. If in a certain language, SHIFT is coded as RFFBO,which word would be coded as LKUMB ?

(A) MMXQG (B) MLVNC (C) KJVLA (D) MJVLC

20. If : (i) Mum Sum Dum means Water is pure ; (ii) Lao Chin Mum means Water has taste; (iii) Dum Phu Phin means He is honest; (iv) Khu Sing Chin means Never taste it; then which letter code stands for has :

(A) Sum (B) Chin (C) Lao (D) Mum

21. If in a certain language, Rum Pum Po means Boy Is Mad; Main Po She means Girl Is Beautiful and Dum Pum To means They Are Mad, which word in the language means Boy ?

(A) Rum (B) Dum (C) Pum (D) Po

22. If water is called black, black is called tree, tree is called blue, blue is called rain, rain is called pink and pink is called fish in a certain language, what is the colour of the sky called in that language ?

(A) Blue (B) Fish (C) Rain (D) Pink

23. If room is called bed, bed is called window, window is called flower and flower is called cooler on what would a man sleep ?

(A) Window (B) Bed (C) Flower (D) Cooler

Directions (24 to25): In each of the following questions find the correct answer from the given alternatives.

24. If 6 is coded as T, 8 is coded as I, 3 is coded as N, 9 is coded as Q, 2 is coded as Y, 5 is coded as D and 7 is coded as R, then what is the coded form of DRINTQ:

(A) 573869 (B) 578396 (C) 576839 (D) None of these

25. In a certain code ‘975’ means ‘ Throw away garbage’, ‘528’ means ‘ Give away smoking’ and ‘213’ means ‘Smoking is harmful’. Which digit in that code means ‘Smoking’:

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03 MATHEMATICAL OPERATIONS

1. It is being given that : > denotes +, < denotes –, + denotes , – denotes =, = denotes ‘less than’ and × denotes ‘greater than’, find which of the following is a correct statement. [CET-VIII]

(A) 3 + 2 > 4 = 9 + 3 < 1 (B) 3 > 2 > 4 = 18 + 3 < 2 (C) 3 > 2 < 4 × 8 + 4 < 2 (D) 3 + 2 < 4 × 9 + 3 < 3

2. f 'A' means '+', 'B' means '–' , 'C' means 'x', then what will be the value of ( 10C 4) A (4C4) B6=?

(A) 60 (B) 56 (C) 50 (D) 46

3. Correct the following equations by interchanging two signs : 16 – 21 ÷ 7 × 6 + 3 = 31

(A) – and + (B) + and × (C) ÷ and + (D) ÷ and × 4. Find out the two signs to be interchanged for making following equation correct :

5 + 3 × 8 – 12 ÷ 4 = 3

(A) + and – (B) – and ÷ (C) + and × (D) + and ÷

Directions : (5 to 9) In the following questions, different letters stands for various symbols as indicated below :

R : Addition S : Subtraction T : Multiplication U : Division V: Equal to W: Greater than

X : Less than

Out of the four alternatives given in these questions, only one is correct according to the above letter symbols. Identify the correct one.

5. (A) 16 T 2 R 4 U 6 X 8 (B) 16 R 2 S 4 V 6 R 8 (C) 16 T 2 U 4 V 6 R 8 (D) 16 U 2 R 4 S 6 W 8 6. (A) 20 U 4 R 4 X 2 T 3 (B) 20 S 4 U 4 V 2 T 3 (C) 20 T 4 U 4 U 2 X 3 (D) 20 R 4 U 4 S 2 W 3 7. (A) 15 U 5 R 3 V 2 T 3 (B) 15 U 5 W 3 R 2 T 3 (C) 15 S 5 T 3 W 2 R 3 (D) 15 R 5 U 3 V 2 R 3 8. (A) 24 U 3 R 2 S 2 W 3 (B) 24 S 3 X 2 T 2 U 8 (C) 24 R 3 S 2 X 2 T 8 (D) 24 U 3 T 2 V 2 R 3 9. (A) 30 R 6 U 2 W 4 T 3 (B) 30 S 6 S 2 X 4 T 3 (C) 30 S 6 U 2 U 4 V 3 (D) 30 U 6 R 2 W 4 T 3 DI RECT IO N SENSE

10. A man walks 9 km due East and then 12 km due South. How far is he from the starting point?

(A) 15 kms. (B) 6 kms. (C) 7 kms. (D) none of these

11. A and B start walking from the same point. A goes North and covers 3 km; then turns right and covers 4 km. B goes west and covers 5 km, then turns right and covers 3 kms. How far apart are they from each other ?

(A) 1 kms. (B) 60 kms. (C) 5 kms. (D) 9 kms.

12. If South-East becomes North, North-East becomes West and so on, what will be West become ? (NTSE Stage-I /Har./ 2009)

(A) North-East (B) North-West (C) South-East (D) South-West

13. A walks 10 metres towards East and then 10 metres to his right. Then every time turning to his left, he walks 5, 15 and 15 metres respectively. How far is he now from his starting point ?

(A) 5 metres (B) 10 metres (C) 15 metres (D) 20 metres

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16. In a row at a bus stop, A is 7th from the left and B is 9th from the right. They both interchange their positions. Now A becomes 11th from the left. How many people are there in the row ?

(A) 18 (B) 19 (C) 20 (D) 21

17. Bittoo is 11th in a queue which has 45 people. The number of gents in the queue is double the number of ladies. If 5 men are infront of Bittoo , how many ladies are behind him ?

(A) 10 (B) 9 (C) 8 (D) 7

18. If you are 15th in a queue starting from extreme ends, how many persons are there in the queue? (NTSE Stage-I /Har./ 2009)

(A) 30 (B) 31 (C) 28 (D) 29

COMPARISON OF RANKS 19. A is richer than B.

C is richer than A. D is richer than C.

E is the richest of all. [CET-VIII]

If they are made to sit in the above degree of richness who will be in the middle position (central position)?

(A) A (B) B (C) C (D) D

Direction : (20 to 22) Read the following information and answer the questions.

A was punctual. B came after him and C immediately before B. D was earliest but E was last of all getting to school.

20. Who arrived first at school ?

(A) A (B) B (C) C (D) D

21. Who arrived second ?

(A) A (B) B (C) C (D) D

22. Who came third ?

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D A I LY P R AC T I SE PR O B L E M

S E S S I O N - 2 0 1 2 - 1 3

04 PUZZLE TEST

Directions : (1 to 2) are based on the information given below :

Six persons A, B, C, D, E and F are sitting in a circle facing one anther front to front. A is sitting in front of B. B, is sitting to the right of E and left of C. A is to the left of F and right of D.

1. Who is sitting between A and C ?

(A) D (B) E (C) F (D) B

2. If the position of A and C are changed, who will be sitting between D and F ?

(A) A (B) C (C) B (D) E

Directions (3 to 5 ) : Study the following statements, marked (P), (Q) and (R) and answer the questions given below:

(P) A, B, C, D and E are five boys sitting in a circle. (Q) C is sitting immediately to the left of E.

(R) A is sitting between D and E.

3. Who is sitting to the immediate left hand side of C?

(A) E (B) A (C) B (D) D

4. Who is sitting between B and A?

(A) C (B) E (C) D (D) None

5. E is sitting between?

(A) B and D (B) D and E (C) B and E (D) A and C

6. R earns more than H but not as much as T, M earns more than R. Who earns least among them?

(A) H (B) R (C) T (D) M

ANALOGY

Direction : (7 to 8 ) In the following questions, choose the words that show the same relationship as given in the each questions.

7. What is related to 'Cube' in the same way as 'Circle' is related to square.

(A) Circumference (B) Sphere (C) Solid (D) Cuboid

8. What is related to 'Diamond' in the same way as 'Soft' is related to 'Wax' ?

(A) Rough (B) Bright (C) Smooth (D) Hard

9. "Kilogram" is related to "Quintal" in the same way as "Paisa" is related to :

(A) Rupees (B) Money (C) Wealth (D) Cheque

10. "Court" is related to "Justice" in the same way as "School" is related to

(A) Teacher (B) Education (C) Student (D) Class

Directions : (11 to 15 ) In each of the following questions, a group of three interrelated words is given. Choose a word from the given alternatives, that belongs to the same group.

11. Potato : Carrot : Raddish

(A) Tomato (B) Spinach (C) Sesame (D) Grondnut

12. Ice : Water :: Solid : ?

(A) Liquid (B) Solution (C) Matter (D) Substance

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are related in some way. Obtain the same relationship between the term to the right of the sign :: from one of the four alternatives given under it.

16. CG : EI :: FJ : ?

(A) JK (B) IJ (C) LM (D) GK

17. ABC : 149 : : ? : 4916

(A) DIP (B) PID (C) BCD (D) BDC

CLA SSI FI CAT I O N

Directions : (18 to 20) In each of the following questions, four words are given, out of which three are same in one way and the fourth one is different from others. Select the odd one.

18. (A) Transport (B) Bus (C) Car (D) Train

19. (A) Cotton (B) Jute (C) Silk (D) Nylon

20. (A) Mercury (B) Venus (C) Pluto (D) Moon

Directions : (21 to 23 ) In the following questions, three out of the four alternatives are same in a certain way and so form a group. Find the odd one that does not belong to the group.

21. (A) 21 : 24 (B) 28 : 32 (C) 14 : 16 (D) 54 : 62

22. (A) 48 (B) 12 (C) 36 (D) 59

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MENTAL ABILITY_VII_DPP-1 _ANSWERKEY

Ques 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Ans D B B B B A B C C D C B C B D Ques 16 17 18 19 20 21 22 23 24 25 Ans B C B A C A C A D C Ques 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Ans A B D B C B C C D A A B D B A Ques 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Ans C A B D A B A C B D B C A B C Ques 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 A ns C C B B B D A D A A D C A C D Ques 16 17 18 19 20 21 22 A ns B A D C D A C Ques 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Ans A C A B C C D A D D D A C B D Ques 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Ans A B D A D B D D C A D D D D D