A bag contain 23 number of coins in the form of 1 rupee, 2 rupee and 5 rupee coin. The total sum of the coins is ` 43. The ratio between 1 rupee and 2 rupees coins is 3 : 2, then the number of 1 rupee coins: (a) 12 (b) 8 (c) 10 (d) 16
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Ratio of coins 1R: 2R: 5R
=3x :2x :(23-5)x
Now,3x+2x*2+(23-5)x*5=43
3x+4x+115-25x=43
18x=72
x=4
No. Of coins of 1rs. =3*4=12
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