walking of a speed of 10km/ hr kavitha reached her school 15 min late the next time she increases her sleep by 2km/hr but still she arrives 5 min late what is the distance of the school from his house!!
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Answer:
km
Let the distance of his school from the house be x
⇒ The difference in time =(15−5)min
=10min
=6010hr
=61hr
⇒ Speed during next journey =10+2=12km/hr
According to the question,
⇒ 10x−12x=61
⇒ 5x−6x=31
⇒ 306x−5x=31
⇒ 30x=31
⇒ x=330
∴ x=10km
∴ The distance of boy school from house is 10km
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