1.

I have a total of 300 in coins of denomination Rs1 , Rs 2,Rs5 . The number of Rs 2coins is 3 times the number of Rs 5 coins . The total number of coins is 160 . how many coins of each demination are with me ?​

Answer»

Answer:

Let the NUMBER of coin 5 = Rs.x

so the number of coin 2 = 3x

so the number of coin 1 = 160 - 4X

so amount of rs.5 = 5x

so the amount of rs.2 = 6x

a/q

5x + 6x + 160 - 4x = 300

7x = 300 - 160

7x = 140

x = 20

so the number of coin of 5 = 20 coins

so the number of coin of 2 = 60 coins

so the number of coin of 1 = 80 coins

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