Question

15. The cost of 5 snack boxes is Rs225. What is the cost of 7 such boxes?
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Answer 1

Answer:

Cost of one snack box = 225/5 = 45 Rs.

So, cost of 7 such boxes = 45×7= 315Rs.

✨Hope it will help you.✨

Answer 2

Answer:

315 Rupees is the cost

Step-by-step explanation:

Given:

cost of 5 snack boxes = Rs225.

Cost of 1 snack box = $\frac{225}{5}$

= 45rs.

To find: the cost of 7 such boxes?

The cost of 7 such boxes = 7 × Cost of 1 snack box

= 7 × 45

= 315rs.

This question is solved by using unitary method.

◾The unitary method is a actually a technique for solving any data problem by first finding the value of a single unit as in this question we actually calculated cost of 1 box , and then finding the required value by multiplying the single unit value.