CSC Company Numerical Ability Time Distance and Speed

In a 300 m race A beats B by 22.5 m or 6 seconds. B's time over the course is:

A. 86 sec B. 80 sec
C. 76 sec D. None of these

Read Solution (Total 3)

ans:
runs 45/2m in 6 sec.

B covers 300 m in 6 x 2/45 x 300sec = 80 sec.
12 years agoHelpfull: Yes(0) No(0)

no the answer is 86 sec
9 years agoHelpfull: Yes(0) No(0)
we clearly see that B Covers 22.5m in 6 sec
Then, B Time over the course = (6/22.5)*300= 80 sec .
7 years agoHelpfull: Yes(0) No(0)

CSC Other Question

In a 200 metres race A beats B by 35 m or 7 seconds. A's time over the course is:

A. 40 sec B. 47 sec
C. 33 sec D. None of these A runs 5/3 times as fast as B. If A gives B a start of 80 m, how far must the winning post be so that A and B might reach it at the same time?

A. 200 m B. 300 m
C. 270 m D. 160 m