Question

7.
Out of a certain sum of money a boy spends 3/5 and then 1/4 of the remainder. He has 15 rupees left. How much amount had he at first​

Answer 1

Answer:

100

Step-by-step explanation:

let the total money be x

3/5 of x + 1/4 of x - x = 15

3x/5 + 1x/4 - x = 15

12x + 5x /20 - x = 15

17x / 20 - x = 15

17x - 20x /20 = 15

- 3x / 20 = 15

- x = 15 × 20 / 3

- x = 100

x = 100

hope it helps you