Question

Rekha had Rs65.She bought some notebooks. If the cost of each notebook is 4⅓, how many notebooks did she buy?​

Answer 1

Given :-

Rekha had Rs65.She bought some notebooks. If the cost of each notebook is 4⅓

To Find :-

Notebook buy

Solution :-

Cost of one notebook = 4 ⅓ = Rs. 13/3

Notebook can be bought for Rs. 65 = 65 ÷ 13/3

⇒ 65 × 3/13

⇒ 5 × 3/1

⇒ 5 × 3

⇒ 15

∴ She buy 15 notebook

Answer 2

Given that:

• Rekha had Rs 65. She bought some notebooks.
• The cost of each notebook is Rs 4⅓.

To Find:

• How many notebooks did she buy?

Let us assume:

• She bought x notebooks of Rs 65.

According to the question.

↠ 1 : 4⅓ = x : 65

↠ 1 : 13/3 = x : 65

↠ 1/(13/3) = x/65

↠ 3/13 = x/65

Cross multiplication.

↠ 3(65) = x(13)

↠ 195 = 13x

↠ 195/13 = x

↠ 15 = x

↠ x = 15

Hence,

• She bought 15 notebooks of Rs 65.