14
Q:
A) 19 km | B) 15 km |
C) 12 km | D) 20 km |
Answer: D) 20 km
Explanation:
Explanation:
Let total distance be 2D.
He walks half distance i.e, (2D/2) = 'D' distance with 3 kmph and
The next 'D' with 6 kmph.
Using formula,
Time = Distance/speed
(D/3) + (D/6) = 5
D =10 ,
Hence, Total distance 2D = 20 kms.