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3.A piggy bank contains Rs. 1 coins, Rs. 2 coins, Rs. 5 coins and Rs. 10 coins. The number of Rs. 10 coins is four times the number of Rs. 5 coins, 8 times the number of Rs. 2 coins and 16 times the number of Rs. 1 coins. If all the money in the piggy bank adds up to Rs. 555, find the number of Rs. 10 coins in it.Immersive Reader |
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Answer» Let x COINS of RS 2 and y coins of Rs 5. According to question, 2x+5y=132...(i) x=3y...(ii) solving both the equation we get, y = 12 and x = 36 Therefore, number of Rs 2 coins = 36 Number of Rs 5 coins = 12 |
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