Question

9 A roll of cloth measures 70 m. If 2 1/2
metres of cloth is needed to stitch one shirt, how many shirts can be
stitched from this roll of cloth?​​

Answer 1

Answer:

28 shirts

Step-by-step explanation:

Given that:

• Roll of cloth measures 70 m
• 2 ½ m of cloth is needed to stitch 1 shirt

To find:

• How many shirts can be stitched from this roll of cloth.

Solution:

In order to solve this question, we shall apply the concept of ratio and proportion.

So, let's understand the situation and write it mathematically.

Let the number of shirts stitched from 70 m roll of cloth be x

→ 1 shirt = 2 ½ m

→ x shirt = 70 m

This can also be written as:

1 : 2.5 :: x : 70

Product of means = Product of extremes

⇒ 2.5 x = 70

⇒ x = 70 ÷ 2.5

⇒ x = 28

∴ 28 shirts can be stitched from 70 m roll of cloth.