CSC Company Numerical Ability Time Distance and Speed

A and B take part in 100 m race. A runs at 5 kmph. A gives B a start of 8 m and still beats him by 8 seconds. The speed of B is:

A. 5.15 kmph B. 4.14 kmph
C. 4.25 kmph D. 4.4 kmph

Read Solution (Total 1)

in 100 m race
A's speed is 5kmph so in m/s it is 5*5/18
time taken by A=D/S=100*18/25=72 sec
Now
B would take 72+8=80 seconds
Speed of B is=(100-8)=(92/80)*18/5= 4.14kmph

ans b.4.14kmph
10 years agoHelpfull: Yes(1) No(0)

CSC Other Question

In a 100 m race, A can give B 10 m and C 28 m. In the same race B can give C:

A. 18 m B. 20 m
C. 27 m D. 9 m In a 100 m race, A beats B by 10 m and C by 13 m. In a race of 180 m, B will beat C by:

A. 5.4 m B. 4.5 m
C. 5 m D. 6 m