Math, asked by anishasinha386, 1 year ago

Priti drives at an average speed of 80 kilometre per hour and reaches the post office from her house in 6 minutes. On her way back, priti reaches her house in 4 minutes 48 seconds. Find the distance between priti house and the post office and also pritti average speed on the return journey

Answers

Answered by amitnrw
4

Answer:

8 km

100 km/hr

Step-by-step explanation:

Priti drives at an average speed of 80 kilometre per hour and reaches the post office from her house in 6 minutes. On her way back, priti reaches her house in 4 minutes 48 seconds

Priti average Speed = 80 km/hr

Time = 6 minutes = 6/60 = 1/10 hr

Distance = Speed * Time

=> Distance = 80 * 1/10  = 8 km

on return

Distance = 8 km

Time = 4 minutes 48 secs = 288 secs  = 288/3600 hr

Average Speed = 8 /(288/3600)  = 3600/36  = 100 km/hr

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