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, the number of 25-paisa coins in the bag is:

Answer 1

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Answer 2

Answer:

120

Step-by-step explanation:

A bag contains 10-paisa, 20-paisa and 25-paisa coins in the ratio 7:4:3.

Let the ratio be x

So, No. of 10 paisa coins = 7x

Value of 7x 10-paise coins = $10 \times 7x = 70x$

So, No. of 20 paisa coins = 4x

Value of 4x 20-paise coins = $20 \times 4x = 80x$

So, No. of 25 paisa coins = 3x

Value of 3x 25-paise coins = $25 \times 3x = 75x$

Since we are given that the total value is rs. 90 =9000 paisa

So, $70x+80x+75x=9000$

$225x=9000$

$x=\frac{9000}{225}$

$x=40$

No. of 25 paisa coins = 3x = $3 \times 40 =120$

Hence the number of 25-paisa coins in the bag is 120.