Latest CSC Aptitude Question SOLUTION: 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

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(#M40006493) CSC Numerical Ability question miscellaneous Keep an EYE

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

Asked In CSC (12 years ago)

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Read Solution (2) :

Aditya Moghe  (11 years ago)

D.6m

speed of A, B and C be s1,s2 and s3 resp.

then, for 100m race,

100=s1*t
90=s2*t
87=s3*t(t= time taken by A to complete race)
from here, we get ratio of speeds of B and C

s2/s3=90/87=30/29

for 180m race,

180=s2*T
(180-x)=s3*T(T= B's time to complete race, x= distance between B&C)

x=6m

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ankit gupta  (9 years ago)

here at time t
a=100 m ,b=90 m,c=87 m
now
b beats c by 3 m in 90 m coz at that time b=90 & c=87
90 m = 3 m
1 m = 3/90
for 180 m race
180 m=(3/90)*180
= 6m


now for

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