Question

If the cost of 15 notebook is rupees 310 find the cost of 12 such notebook

Answer 1

Answer:248 rupees

Step-by-step explanation:

for 15 notebook = 310

for 1 notebook = 310/15

for 12 notebooks = 310 x  12 /15 = 248 rs

Answer 2

Solutions :-

Given :
The cost of 15 notebook is rupees 310.


Now we have to find the cost of 12 such notebook,

By unitary method,
Cost of 15 notebooks = Rs 310
Cost of 1 notebook = Rs 310/15
Cost of 12 notebooks = Rs (310 × 12)/15 = Rs 248


Hence,
The cost of 12 notebooks = Rs 248