A) 12 km
B) 16 km
C) 20 km
D) 24 km
Correct Answer: B
Solution :
[b] Let distance travelled by man on foot = x km \[\therefore \] Distance travelled by man by bicycle \[=(61-x)\,km\] \[\Rightarrow \] \[9=\frac{x}{4}+\frac{61-x}{9}\] \[\Rightarrow \] \[9=\frac{9x+244-4x}{36}\] \[\Rightarrow \] \[324=5x+244\] \[\Rightarrow \] \[x=16\] |
You need to login to perform this action.
You will be redirected in
3 sec