18. Samir reads1/3 part of a book in 1 hour how much part of the book will be read in 2 1/5 hours please answer it
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2 1/5 hours = 2 1/5 X 60
2 X 12
24 mins
In 1 hour
1/3 of the book is readed
So
x 1 = 60 min
y1 = 1/3
x2 = 24 min
y2 = ?
it is a direct inverse
Then
x 1/y1 = x2/y2
60/3 = 24 /y2
20/24 = y2
10/12 = y2
5/6 = y2
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