A man goes to his office at a speed of 20km/hr and reaches 30 minutes late next day he increase his speed to 24km/hr but he still late by 10 minutes find distance between the home and office
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Answer:
20
Step-by-step explanation:
Let the distance between his house and office be d and the normal time be t hours.
When he drives at 20 km/h, it takes (t + 1/6) hours and when at 30 kmph, it takes (t – 1/6) hours.
D = 20 * (t + 1/6)
D = 30 * (t – 1/6)
Equating the two equations, we have
20 * (t + 1/6) = 30 * (t – 1/6)
t = 50 mins
Distance = 20 * (1) = 20 kms
The distance between his house and office is 20kms.
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