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I have a total of Rs. 300 in coins of denomination Rs. 1, Rs. 2 and Rs. 5. The number of Rs. 2 coins is 3 times the number of Rs. 5 coins. The total number of coins is 160. How many coins of each denomination do I have? |
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Answer» Given, TOTAL number of coins =160 Given that the number of RS.2 coins are 3 times the number of Rs. 5 coins. Number of Rs. 5 coins =x Number of Rs. 2 coins =3x Number of Re. 1 coins =160−(x+3x)=160−4x Total value of coins = Rs. 300 So, 5×x+2×3x+1×(160−4x)=300 5x+6x+160−4x=300 7x=140 x=20 So, number of Rs. 5 coins =20 Number of Rs. 2 coins =60 Number of Re. 1 coins =80 |
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