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ARITHMETIC AND MENTAL ABILITY- PAGE 4

1. Find 10+2x5—6+2:
(A) 28 (B) 17 (C) 7 (D) 12
Ans: B

2. Which of the following is equivalent of 0.03?
(A) 3/100 (B) 3/10 (C) 3/1000 (D) 100/3

Ans: A
 
3. If 4:5=X:20, the value of X is:
(A) 1 (B) 20 (C) 80 (D) 16

Ans: D
 
4. Average mark scored by 30 students in a class is 40. When a new student is added to the class, average mark becomes 41. Find the mark of the new student :
(A) 71 (B) 61 (C) 51 (D) 41

Ans: A
 
5. If 20% of a number is 80, find 30% of that number :
(A) 160 (B) 240 (C) 120 (D) 60

Ans: C
 
6. A trader increases the price of an article by 10% and then allows a discount of 10%. What is the net effect of it for the trader?
(A) No profit (B) No loss (C) 1% profit (D) 1% loss

Ans: D

7.
56 workers can do a piece of work in 14 days. How many more workers will be needed to complete the same work in 8 days?
(A) 98 (B) 65 (C) 24 (D) 42

Ans: D
 
8. Write the next number in the sequence 4, 9, 25, 49, 121, ...........
(A) 144 (B) 81 (C) 169 (D) 225

Ans: C
 
9. Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?
(A) 9 (B) 12 (C) 10 (D) 6

Ans: C

10.
At what rate percent on simple interest will Rs. 750 amount to Rs. 900 in 5 years?
(A) 4% (B) 5% (C) 15% (D) None of the above

Ans: A
 
11. Replace the ? by the correct mathematical symbol to make the expression true : 8 ? 5 ? 4 ? 9 = 45
(A) +, —, x
(B) x, —, +
(C) x, +, --
(D) —, +, x

Ans: B
 
12. If MATHS is coded as PDWKV then how will you code CLERK?
(A) SGTRE (B) FOHUN (C) FOUSE (D) DMFSL

Ans: B
 
13. Today is Saturday. After 68 days, it will be :
(A) Sunday (B) Saturday (C) Thursday (D) Monday

Ans: C
 
14. If reflection of a clock in mirror shows time as 10:20, find the actual time :
(A) 3:50 (B) 1:40 (C) 2:40 (D) 1:45

Ans: B
 
15. Find out the odd one :
​(A) 17 (B) 27 (C) 37 (D) 47

Ans: B
 
16. What would be the next term in the series? EDC, HGF, KJI, .........
(A) MNO
(B) LMN
(C) UVT
(D) NML

Ans: D
 
17. A man walks 30 mts towards North. He then turns left and walks 40 mts. He again turns left and walk 30 mts. Further he moves 20 mts after turning to the right. How far is he from his original position?
(A) 60 mts (B) 40 mts (C) 30 mts (D) 70 mts

Ans: A
 
18. A is the brother of B, C is sister of D, B is son of C. How is A related to C?
(A) Father (B) Sister (C) Brother (D) Son

Ans: D
 
19. How many P’s are there in the following series which are not followed by a vowel?
APEORPNOPURXYPZEPRLPC
(A) 5 (B) 4
(C) 3 (D) 2

Ans: C

20
:- If AIR is coded as KTB, then SOIL is coded as A:-CYTW B:- CYTV C:- CVYT D:-CTYW
Ans: B

21:- Find the odd one out: 121, 169, 181, 196
A:-121
B:- 169
C:-181
D:- 196
Ans: C

22:- 7:343::6: ?
A:- 36 B:-216 C:- 366 D:-1221
Ans: B

23:- A man goes 45 meters North, turns left and walks 20 meters. Then turns right and walks 25 meters. Then again turns right and walks 20 meters. How far is he from his original position?
A:-60 meters B:-65 meters C:- 70 meters D:-110 meters
Ans: C 

24:- Halley's comet is regularly visible from Earth in every 76 years. This comet appeared in 1986. In which of the following years was the comet formerly visible from Earth?
A:-AD 760 B:-AD 1054 C:- AD 1576 D:- AD 1378
Ans: D

25:- Next number in the series is 0, 1, 1, 2, 3, .
A:- 4
B:- 5
C:- 6
D:- 7
Ans: B

26:- A is the brother of B. A is the son of C. D is the father of C. How is B related to D?
A:-Grandson B:-Son
C:- Son-in-law D:- Nephew
Ans: A

27:- Line : Square : :Arc: ?
A:- Parallelogram B:-Sphere C:- Circle D:-Globe
Ans: C

28:- On arranging the words, as in a dictionary, Account, Accurate, Accord, Accordance which comes at the end?
A:-Account B:-Accurate C:- Accord D:-Accordance
Ans: B

29:-Select that alternative which is analogous to the first two Flying : Bird : : Creeping :
A:-Aeroplane B:-Snail C:-Ground D:-Flower
Ans: B

30:-HOT is related to OVEN in the same way COLD is related to
A:-Airconditioner B:-Refrigerator C:-Ice cream D:-Snow
Ans: B

31:-NUMBER : UNBMRE : : GHOST:
A:-HOGST B:-HOGTS C:-HGOST D:-HGSOT
Ans: D

32:-0.15 : 0.0015 : : 1.03:
A:-0.103 B:-0.0103 C:-1.003 D:-10.30
Ans: B

33:-Out of the following pairs of words which one is different from the rest
A:-Mother : Father B:-Aunt : Uncle C:-Grand Father : Grand Son D:-Mother in law : Father in law
Ans: C

34:-Which letter group is different from the rest?
A:-MADE B:-SHED C:-CEDE D:-DOLT
Ans: C

35:-Find the odd one
A:-Day B:-Week C:-Time D:-Month
Ans: C

36:-Complete the series 1 3 7 15 31 63 .....
A:-123 B:-125 C:-127 D:-129
Ans: C 

37:-Introducing Rajesh, Neha said His brother's father is the only son of my grand father. How Neha is related to Rajesh?
A:-Sister B:-Daughter C:-Mother D:-Niece
Ans: A

38:-Which is the one that does not belong to the group?
A:-Cloth B:-Weaver C:-Thread D:-Cotton
​Ans: B


39. In a single throw of a die, the probability of getting a multiple of 3 is
(A) 1/2 (B)1/3
(C) 1/6 (D) 2/3
Ans: B

40. The product of two consecutive numbers is 4032. Find the numbers
(A) 61,62

(B) 64,65
(C) 63,64
(D) 62,63
Ans: C

41.  Two equal sums of money were lent at simple interest at 11% p.a. for 3.5 years and 4.5 years respectively. If the difference in interests for two periods was Rs.  412,50, then each sum is
(A)  Rs.3,250 (B) Rs. 3,500 (C ) Rs. 3,750 (D) Rs. 4,250
Ans: C

​
  • Arithmetic and Mental Ability
  • Arithmetic and Mental Ability- Page 1
  • Arithmetic and Mental Ability- Page 2

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  • HOME
    • OVERVIEW OF UPSC
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      • GEN. STUDIES- INDIA PAGE 5
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