Mental Ability and Test of Arithmetic Q & A for PSC degree level exams
Mental ability test is one of the prime topics of most of the competitive examinations besides one of the best determining factor of job performance across the country. These types of questions tests the level at which we learn things, understand the instructions and solve problems. It may encompasses our verbal concepts, vocabulary, arithmetic and spatial awareness -the ability to judge the positions and sizes of objects etc.
By providing these previous years questions , it is our aim to let you understand the standards and difficulty level of questions that are being raised in Various PSC Examinations.
1. A person invests 75% on machinery, 10% on raw materials, 10 % on employees and Rs. 20000 cash
with him. How much he invest in machinery and raw materials together?
(a) Rs.17000 (b) Rs.1,70,000
(c) Rs.3,40,000 (d) Rs.34000
Ans: c
2. 40% of 70% of a number is 336. What is the one-third of that number?
(a) 400 (b) 480 (c) 450 (d) 475
Ans: a
3. Which option is different from others?
(a) 15-45 (b) 21-63 (c) 16-64 (d) 37-111
Ans: c
4. In a class of 60 students 40% can speak only Hindi, 25% can speak only English and the rest of the
students can speak both the languages. Total how many students can speak English?
(a) 32 (b) 36 (c) 18 (d) 25
Ans: b
5. ‘Date’ is related to ‘Calendar’ in the same way as ‘Time’ is related to:
(a) Day (b) Hour (c) Sun (d) Clock
Ans: d
6. Two-third of a number is 16 less than the 40% of that number. What is that number?
(a) 60 (b) 120 (c) 180 (d) 45
Ans: a
7. If ‘green’ is called ‘white, ‘white’ is called ‘yellow’, ‘yellow’ is called ‘blue’, ‘blue’ is called ‘pink’, then
what is the colour of milk?
(a) pink (b) yellow (c) blue (d) green
Ans: b
8. The breadth of a rectangular plot is increased by 25%. By what percent should the length be
decreased to maintain the same area?
(a) 25 (b) 40 (c) 35 (d) 20
Ans: d
9. What should come in the place of the question mark? 3,7,19,55,163,?
(a) 487 (b) 467 (c) 475 (d) 485
Ans: a
10. An amount of money is divided between A,B and C in the ratio of 3:5:12 respectively.Ifthetotal share
of A and B together is Rs.800 less than the share of C, what is A’s share in it?
(a) Rs.1000 (b) Rs.2400 (c) Rs.600 (d) Rs.1200
Ans: c
11. At 12:30 the hour hand of a clock faces north and the minute hand faces the south. At 2:45 the minute hand will be in which direction?
(a) North east (b) North west (c) East (d) West
Ans: d
12. Find the value of K in the number 5K3457, so that it is divisible by 11:
(a) 1 (b) 3 (c) 2 (d) 5
Ans: c
13. Select the odd one:
(a) Beijing (b) New Delhi(c) Kathmandu (d) Pakistan
Ans: d
14. The average of five numbers is 342. The average of the first two numbers is 325 and the average of
last two numbers is 357. What is the third number?
(a) 256 (b) 356 (c) 346 (d) 364
Ans: c
15. Pointing to a photograph, a woman says, “This man’s son’s sister is my mother-in-law.” How is the
woman’s husband related to the man in the photograph?
(a) Grandson (b) Son (c) Son-in-law (d) Nephew
Ans: a
16. If 2 tables and 3 chairs cost Rs.3500, while 3 tables and 2 chairs cost Rs.4000, then the price of one
table is:
(a) Rs.1500 (b) Rs.1000 (c) Rs.750 (d) 1800
Ans: b
17. Identify the odd man out:
(a) Punjab (b) Rajastan (c) Gujarat (d) Haryana
Ans: c (coastline)
18. The number of girls in a class is 44 which is 55% of the total number of students. How many boys are
there in the class?
(a) 84 (b) 46 (c) 80 (d) 36
Ans: d
19. Find the missing term in the series: 1799, 899, 449, ?
(a) 94 (b) 95 (c) 96 (d) 224
Ans: d
20. The length of rectangle is increased by 40% and the breadth is reduced by 20%. What will be the
effect on its area?
(a) increase by 8% (b) increase by 20%
(c) increase by 12% (d) increase by 16%
Ans: c
21. Ornithologist: Bird:: Anthropologist:?
(a) Animals (b) Mankind (c) Insects (d) Environment
Ans: b
22. The average age of P,Q and R at present is 26 years. If R is 6 years older than P, how old is Q
now?
(a) 28 years (b) 32 years
(c) 18 years (d) Data inadequate
Ans: d
23. Select the odd one:
(a) Plassey (b) Saranath
(c) Panipat (d) Haldighati
Ans: b
24. What sum will be amounted to Rs.6600 in 4 years at 8% p.a. simple interest?
(a) Rs.6000 (b) Rs.5000
(c) Rs.6200 (d) 6300
Ans: b
25. In certain language ‘LITTLE’ is coded as ‘NFVQNB’ in the same way how ‘PEBBLE’ be coded?
(a) RBDYNB (b) RCDXNB
(c) RBDXMB (d) RCDXMB
Ans: a
26. Select the odd one:
(a) Porbandar (b) Sabarmati
(c) Champaran (d) Pavnar
Ans: d
27. If blue is called green, green is called violet, violet is called white, white is called black and black is
called blue, then what is the colour of swan?
(a) Blue (b) Black (c) White (d) Green
Ans: b
28. Two-fifth of three-seventh of one third of a number is 30. What is 20% of that number?
(a) 105 (b) 525 (c) 440 (d) 620
Ans: a
29. Find the missing term in the series: 5,11,23,47,?
(a) 96 (b) 95 (c) 97 (d) 98
Ans: b
30. The price of an article was decreased by 10% and again reduced by 10%. By what percent
should the price have been reduced once , in order to produce the same effect as these two
successive reductions?
(a) 15 (b) 20 (c) 19 (d) 25
Ans: c
31. Which one is different from others?
(a) BD6 (b) FH14 (c) JL22 (d) NP31
Ans: d
32. Of the three numbers, first is twice as the second and second is twice as the third. The average of
the three numbers is 21. The smallest of the three numbers is:
(a) 6 (b) 9 (c) 12 (d) 18
Ans: b
33. If the word ‘STOVE’ can be written as ‘FNBLK’, how can be the word ‘VOTES’ be written in that
code?
(a) LBNKF (b) LNBKF (c) LKNBF (d) FLKBN
Ans: a
34. A train 300 metres long is running at a speed of 25 metres per second. It will cross a bridge of 200
metres in:
(a) 5 seconds (b) 10 seconds
(c) 25 seconds (d) 20 seconds
Ans: d
35. Rajiv is the brother of Atul. Sonia is the sister of Sunil. Atul is the son of Sonia. How Rajiv related
to Sonia?
(a) Nephew (b) Brother (c) Son (d) Father
Ans: c
36. The smallest number that must be added to 803642 in order to obtain a multiple of 11 is:
(a) 1 (b) 7 (c) 4 (d) 9
Ans: b
37. Select the odd one:
(a) Pistol (b) Sword (c) Hand granade (d) Tank
Ans: b
38. A boat goes 20km downstream in one hour and the same distance upstream in two hours. The
speed of the boat in still water is:
(a) 15km/hr (b) 10km/hr (c) 5km/hr (d) 7.5 km/hr
Ans: a
39. If PAPER is written as OZODQ, how PENCIL can be written in that code?
(a) QFODJM (b) OFOBHM
(c) ODMDJM (d) ODMBHK
Ans: d
40. If F=6, and BAT=23, then what will be the value of MEAL?
(a) 31 (b) 25 (c) 36 (d) 29
Ans: a
41. Of the five members of a panel sitting in a row, A is to the left of B but on the right of C, D is on the
right of B but on the left of E. Find out the member who is sitting in the middle:
(a) B (b) D (c) A (d) C
Ans: a
42. The average marks obtained by 50 students in a class is 55. The average marks obtained by those
who failed is 45. What is the average marks obtained by those who passed?
(a) 65 (b) 70 (c) 80 (d) Data inadequate
Ans: d
43. Pointing to Asha in the photograph, Manoj said, “She is the daughter of my grand father’s only
son”. How is Asha related to Manoj?
(a) Mother (b) Cousin
(c) Sister (d) Mother-in-law
Ans: c
44. Of the three numbers, the first is twice the second and the second is twice the third. The average of
the three numbers is 21. Find the largest number of the three.
(a) 36 (b) 38 (c) 47 (d) 48
Ans: a
45. The ratio between the breadth and the perimeter of a rectangular plot is 1:5. If the area of the plot is
2400 sq.metres, what is its length?
(a) 40m (b) 60m (c) 80m
(d) Data inadequate
Ans: b
46. There are five friends-S,K,M,A and R. S is shorter than K, but taller than R. M is the tallest. A is little
shorter than K and little taller than S. Who has two persons taller and two persons shorter than him?
(a) R (b) S (c) K (d) A
Ans: d
47. The average of five odd numbers is 7. What is the middle number if they are arranged in descending
order?
(a) 9 (b) 5 (c) 7 (d) 8
Ans: c
48. A retailer gets a discount of 40% on the printed price of an article. The retailer sells it at the printing
price. His gain percent is:
(a) 40 (b) 66.6 (c) 55 (d) 75
Ans: b
49. Sreejith bought a calculator with 30% discount on the listed price. Had she not got the discount, she
would have paid Rs.82.50 extra. At what price did she buy the calculator?
(a) 192.50 (b) 275
(c) 117.85 (d) Cannot be determined
Ans: a
50. Select the odd one:
(a) Kota (b) Kalpakkam
(c) Narora (d) Ellora
Ans: d
- By Prof. NMC Nair
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