Q3 of 71 Page 62

There are some 25 paise coins and some 50 paise coins in a bag. The total number of coins is 140 and the amount in the bag is Rs. 50. Find the number of coins of each value in the bag.

Let the number of 50 paise coins be x, and the number of 25 paise coins be y.

Given, the total no. of coins is 140


⇒ x + y = 140 …[1]


also, the amount in the bag is Rs. 50




⇒ 2x + y = 200 …[2]


eq[2] – eq[1]


x = 60


and by eq[1]


⇒ y = 80


amount of 50 paise cons =


amount of 25 paise cons =


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