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Prateek Asked :

13-01-2022 Races and Games

Q. 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


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Dapzoi Verified
Commented on 2022-01-15 10:54:29 (IST)
Answer: Option B

 

Explanation:

A : B = 100 : 90.

A : C = 100 : 72.

B : C = B/A x A/C = 90/100 x 100/72 = 90/72

When B runs 90 m, C runs 72 m.

When B runs 100 m, C runs (72/90 x 100) m = 80 m.

B can give C 20 m.