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25-05-2021 Time and Distance

Q. A farmer travelled a distance of 61 km in 9 hours. He travelled partly on foot @ 4 km/hr and partly on bicycle @ 9 km/hr. The distance travelled on foot is:

A. 15 km
B. 16 km
C. 17 km
D. 18 km


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Nasreen Laskar
Commented on 2021-05-25 22:14:48 (IST)
Let, total time taken to travel on foot be 't' hr
So,
4t+9(9-t)=61
or, 5t=20
or, t=4

Distance travelled on foot=4*4 km
=16km

Ans-(B)