a man would be 5minute late to reach his destination if he rides his bike at 30km per hour. but he would be 10 minute early if he ride at the 40km per hour. what is the distance of his destination from where he starts?
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Answer:
30 km
Step-by-step explanation:
(v1×v2/v2-v1)× time difference
30×40/10 × 15/60
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