Arithmetic Solved MCQs

Basic Arithmetic Solved MCQs for FPSC and Other Competitive Exams (Set-II)

51. Find the average of first 40 natural numbers.
(a) 40
(b) 35
(c) 30.6
(d) 20.5
(Answer) d

52. A person who suffers from Claustrophobia has fear of what?
(a) Confined places
(b) Lightning
(c) Heights
(d) None of these
(Answer) a

53. Two taps A and B can fill a tank in 12 minutes and 15 minutes respectively. If both the taps are opened simultaneously and the tap A is closed after 3 minutes, then how much more time will it take to fill the tank by tap B?
(a) 7 min & 15 sec
(b) 7 min & 45 sec
(c) 8 min & 5 sec
(d) 8 min & 15 sec
(Answer) d

54. The milk and water in two vessels A and B are in the ratio 4:3 and 2:3 respectively. In what ratio, the liquids be mixed in both the vessels so that the new liquid contains half milk and half water?
(a) 7:5
(b) 1:2
(c) 2:1
(d) 6:5
(Answer) a

55. A car covers a distance of 715 km at a constant speed. If the speed of the car would have been 10 km/hr more, then it would have taken 2 hours less to cover the same distance. What is the original speed of the car?
(a) 45 km/hr
(b) 50 km/hr
(c) 55 km/hr
(d) 65 km/hr
(Answer) c

1. In decreasing price of a motor bike by 10% number of bikes sold is increased by 10%. What is the change in overall sales?
(a) Increases
(b) decreases
(c) remains same
(d) may increase or may decrease
(Answer) b

2. The radius of circle is increased by 20% its area is increased by:
(a) 44%
(b) 40%
(c) 20%
(d) no change
(Answer) a

3. A 30-ounce solution is 25% alcohol. If 60-ounces of water are added to it what percent of the new solution is alcohol?
(a) 8%
(b) 8.33%
(c) 8.35%
(d) 8.50%
(Answer) b

4. 80% of the workers working in a company wear jeans. Of these 20% wear jeans that are black what percent of the workers wear jeans that are not black?
(a) 30%
(b) 60.00%
(c) 60.55%
(d) 64%
(Answer) d

5. Two trains travel in the same direction at 50 and 32 km/h. A man in slower train observes that the faster train passes him in 15 seconds. The length of faster train is:
(a) 75m
(b) 100m
(c) 150m
(d) 341.66m
(Answer) a