1.

The number of 5 rupees and 2 rupees coins that Donald has are in the ratio 4 : 7. Find the total number of coins that Donald has if amount of money in form of 5 rupees is 42 rupees more than amount of money in form of 2 rupees.1). 422). 773). 704). 60

Answer»

Let the number of 5 rupees COINS and 2 rupees coins be 4T and 7T, respectively.

We know, amount of money in form of 5 rupees is 42 rupees more than amount of money in form of 2 rupees.

⇒ (4T × 5) – (7T × 2) = 42

⇒ T = 42/6 = 7

TOTAL number of coins = 4T + 7T = 11T = 77


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