Question

A bag contains 10-paisa, 20-paisa and 25-paisa coins in the ratio 7:4:3. If the total value is rs.90, then what is the number of 25- paisa coins in the bag

Answer 1

Since the ratio is 7:4:3,

Number of 10 paisa coins- 7x

Number of 20 paisa coins- 4x

Number of 25 paisa coins- 3x

Total amount of 10 paisa- 70x

Total amount of 20 paisa- 80x

Total amount of 25 paisa- 75x

Total amount- Rs.90= 9000 paisa

9000 = 70x+80x+75x

9000 = 225 x

9000/225=x

x = 40

So number of coins of 25 paisa- 120

Hope this helps! Thank you .