Question

# Andy and Chris are running a race. Andy is faster than Chris, so he gave Chris a 32 m lead in a 252 m race. However, Andy lost by 12 m. What lead should Andy give so that they both finish together?

A
35 m
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
B
27 m
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
C
21 m
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
18 m
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
Open in App
Solution

## The correct option is C 21 mIn the first case, Chris ran 252 - 32 = 220 m and Andy ran 252 - 12 = 240 m in the same time. So, their speeds are in the ratio 220:240=11:12 For them to finish together, Andy runs 252 m, and Chris runs, let's say, x m. So, again, x252=1112 x=84×114=21×11=231 Andy and Chris reach together, if Chris covers 231 m. Lead to be given =252−231=21 m

Suggest Corrections
0
Related Videos
Properties of Ratio
MATHEMATICS
Watch in App
Explore more