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:
- 14 km
- 15 km
- 16 km
- 17 km
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.