Question

80m of cloth are required to make 36 shirts. How many cloth required to make 45 shirts?

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Answer 1

100m

Explanation:

80/36= takes 2 2/9 or 20/9 to make one shirt

20/9*45 shirts=100m

Answer 2

80m --------> 36 shirts

x m ----------> 45 shirts

Thus by the unitary method, the value of x will be;

36 × x = 80 × 45

x = 80 × 9 × 5 / 36

x = 80×5/4

x = 20 × 5

x = 100 shirts.