A farmer travelled a distance of 61 km in 9 hours. Partly on foot @ 4 km/hr

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

Anurag Mishra Professor Asked on 28th February 2016 in Maths.

1 Answer(s)

Answer: (3) 16 km

Solution:-
Let the distance traveled on foot be X km.

Then, distance traveled on bicycle = (61 – X) km

According to the question,
So, X/4 + (61 – X)/9 = 9 x 36
(9 X + 4 x 61 – 4 X) = 9 x 36
5 X + 244 = 324
5 X = 80
X = 80/5
X = 16 km

Then, distance traveled on foot is 16 km.

Hence, the correct answer is option (3) 16 km.

Anurag Mishra Professor Answered on 5th March 2016.