Question

please help me friends please and write correct please don't write wrong ok please help me friends please ​

Answer 1

Cost of 3 exercise books= Rs.15
Cost of 1 exercise book=15/3= Rs.5

Therefore, cost of 9 books=9*5=Rs.45.

Answer=Rs. 45

Answer 2

Answer:

Amal will pay 45/- for 9 such

Amal will pay 45/- for 9 suchbooks.

Step-by-step explanation:

If 3books cost 15/-

If 3books cost 15/-Then,

If 3books cost 15/-Then,3x = 15

If 3books cost 15/-Then,3x = 15or x = 15/3

If 3books cost 15/-Then,3x = 15or x = 15/3X = 5

If 3books cost 15/-Then,3x = 15or x = 15/3X = 5Also,

If 3books cost 15/-Then,3x = 15or x = 15/3X = 5Also,9x = y. [y = No.of books]

If 3books cost 15/-Then,3x = 15or x = 15/3X = 5Also,9x = y. [y = No.of books]or 9(5) = y

y =45

Therefore, 9 such books cost 45/-