It took a farmer 9 hours to travel 61 kilometres. He travelled at a speed of 4 km/hr on foot and 9 km/hr on his bicycle. On foot, the distance travelled is:
A. 14 km
B. 15 km
C. 16 km
D. 17 km
Answer:C
It took a farmer 9 hours to travel 61 kilometres. He travelled at a speed of 4 km/hr on foot and 9 km/hr on his bicycle. On foot, the distance travelled is:
A. 14 km B. 15 km C. 16 km D. 17 km
Explanation: Let's say the distance travelled on foot is x kilometres.The distance travelled by bicycle is then (61 -x) kilometres.As a result, x/4 + (61 -x)/9 = 99x plus 4(61 -x) = 9 x 365 x 80 =x is equal to 16 kilometres.