1. Jerry went out for a walk. He covered 150 meters in the 1st minute. Thereafter, the distance covered by him decreased by 10 meters every minute. Find the total distance covered by Jerry in 15 minutes.
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Given : jerry went out for a walk. he covered 150m in the 1st minute. thereafter, the distance covered by him decreased by 10m every minute. find the total distance covered by jerry in 15 minutes
To Find : the total distance covered by jerry in 15 minutes
Solution:
Distance covered in 1st minute = 150 m
Distance covered in 2nd minute = 140 m
Distance covered in 15 th minute = 10 m
Hence Total Distance = (15/2)(150 + 10)
= 15 * 80
= 1200 m
= 1.2 km
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