List of Mathematical Series Questions for Practice
The population of a village was 9600. In a year, with the increase in population of males by 8 % and that of females by 5 %, the population of the village became 10272. What was the number of males in the village before increase?
(A) 4200
(B) 4410
(C) 6400
(D) 6048
Correct Answer : C
A man rides his vehicle at the rate of 36 km/hr but stops for 12 minutes, to change parts at the end of every 14th km,what will be the timed taken to cover a distance of 90 km?
(A) 6 hours 12 minutes
(B) 2 hours 30 minutes
(C) 3 hours 42 minutes
(D) 5 hours 32 minutes
Correct Answer : C
A policeman starts to chase a thief. When the thief goes 10 steps the policeman moves 8 steps and 5 steps of the policeman are equal to 7 steps of the thief. The ratio of the speeds of the policeman and the thief is:
(A) 28 : 25
(B) 56 : 25
(C) 25 : 28
(D) 25 : 26
Correct Answer : A
Two train of length 100 meter and 80 meter respectively run on parallel lines of rails. When running in the same direction the faster train passed the slower one in 18 second, but when they are running in opposite directions with the same speed as earlier, they pass each other in 9 seconds. Find the speed of each train.
(A) 20 m/sec, 15 m/sec
(B) 5 m/sec, 15 m/sec
(C) 20 m/sec, 25 m/sec
(D) 30 m/sec, 15 m/sec
Correct Answer : B
A 450 meter long train crosses a bridge 650 meters long in 36 seconds. What is speed (in km/hr) of the train?
(A) 125
(B) 150
(C) 110
(D) 95
Correct Answer : C