Sushant read 1/4 part of a book in 1 hour. How much part of the book will he read in 16/5 hours? (b) A car covers a distance of 86.4 Km in 3.2 hours. What is the average distance covered by it in 1 hour?
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1. 1/4×16/5
=16/20
=4/5
2.86.4=864/10
3.2=32/10
=864/10÷32/10
=864/10×10/32
now 10 is cancelled by 10
=864/32
=27 km is the answer
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