Maths Series Questions with Answers
If the height of a cylinder is increased by 15% and the radius of its base is decreased by 10%, then by what percent will its curved surface area change?
(A) 3.5 % decrease
(B) 3.5 % increase
(C) 5 % increase
(D) 5 % decrease
Correct Answer : B
A is twice as fast as B and B is thrice as fast as C. The Journey covered by C in 42 minutes will be covered by A in.
(A) 28 min
(B) 7 min
(C) 63 min
(D) 14 min
Correct Answer : B
A man walks a certain distance and rides back in 4 hours 30 minutes. he could ride both ways in 3 hours. The time required by the man to walk both ways is
(A) 5 hours
(B) 6 hours
(C) 4 hours 30 minutes
(D) 4 hours 45 minutes
Correct Answer : B
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
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Vikram Singh
Providing knowledgable questions of Reasoning and Aptitude for the competitive exams.
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