Question

2. Devi bought n skirts at $12 each, (2n-1) skirts at $15 each, and 4 skirts at Sn each. Find the total cost of the skirts she bought.​

Answer 1

The cost of n skirts at $12 each is 12n dollars.

The cost of (2n-1) skirts at $15 each is 15(2n-1) dollars.

The cost of 4 skirts at Sn each is 4Sn dollars.

Therefore, the total cost of the skirts Devi bought is:

12n + 15(2n-1) + 4Sn

Simplifying the expression:

12n + 30n - 15 + 4Sn

42n - 15 + 4Sn

So, the total cost of the skirts Devi bought is 42n - 15 + 4Sn dollars.