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

To Find :

• Find how many notebooks of Rs. 65 ?

Solution :

• 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.

Answer 2

A N S W E R :

• She bought 15 notebooks of Rs. 65.