A) 1.2 km/hr
B) 2.4 km/hr
C) 3.6 km/hr
D) 4.8 km/hr
Correct Answer: D
Solution :
Given\[,\] \[u=6\,\,km/hr\]. \[v=4\,\,km/hr\]. Average speed \[=\frac{2uv}{(u+v)}=\frac{2\times 6\times 4}{(6+4)}\] \[=\frac{48}{10}\] \[=4.8\]km/hr.You need to login to perform this action.
You will be redirected in
3 sec