Question

a cyclist can cover a certain distance at a speed of 28 km/hr in 65 minutes. what will his speed if he covers the same distance in 35 minutes​

Answer 1

Answer:speed=distance÷time

Distance=speed×time

Case:1

D=28km/hr×65min

D=1820m or 1.82km

Case:2

D=s×t

1820m=s×35min

Speed=1820/35

Speed=52km/hr

Step-by-step explanation:

Answer 2

time = 65 min = (65÷60) hr

distance = speed × time = 28 × 65/60 km

= 1820/60 km

time = 35 min = (35÷60) hr

speed = distance ÷ time

= (1820/60) ÷ (35/60)

= 52 km/hr