Question

rita has 15 coins in denomination of 25paise and 50paise.if the amount with her is 5 rupees find the number of coins of each denomination with her.

Answer 1

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Answer 2

Let the number of 25 paise coins be x = > 0.25 rupees

Then the number of 50 paise coins will be 15 - x = > 0.50 rupees.

Given that total amount with her is 5 rupees.

= > x * 0.25 + (15 - x) * 0.50 = 5

= > 0.25x + 7.5 - 0.50x = 5

= > 7.5 - 0.25x = 5

= > -0.25x = 5 - 7.5

= > -0.25x = -2.5

= > x = 10.

Therefore:

= > The number of 25 paise coins = 10.

= > The number of 50 paise coins = 10.

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