Question

Asha purchased 7 notebook for ₹ 91. how much would she have to pay for 13 such notebook​

Answer 1

Explanation:

Cost of 7 books = 90

cost of 1 book =91/7

= 13

Cost of 13 books =13*13

= 169

Answer 2

Answer:

169

Explanation:

this is a direct variation method

where 7 notebooks=91 rupees

now, 13 notebooks= x rupees

x=13*91

7

=169