1.

In a bag, the number of one rupee coins is three times the number of two rupees coins. If the worth of the coins is 120, find the number of 1 rupee coins.

Answer»

Let two rupees coins are x in numbers.

So, one rupee coins are 3x in numbers.

According to question, 1(3x) + 2(x) = 120

⇒ 3x + 2x = 120

⇒ 5x = 120

⇒ x = 120/5 24

Thus, 3 × 24 – 72 coins are of one rupee coins.



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