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I have the total of Rupees 300 in coins of denomination Rupee 1, Rupee 2 and Rupee 5. The number of Rupee 2 coins is 3 times the number of Rupee 5 coins.

The total number of coins is 160. How many coins of each denomination are with me.

Let the no of of 5 rupee coin be x no. of 2 rupee coin be=3x no. of 1 rupee coin be y According to question...................... x+3x+y=160 4x+y=160 mark as 1st total Rs=300 we have x coin of 5 Rupee ,then Total rupees =5x similarly......................................................=6x similarly....................................................=y total rupees we have=300 11x+y=300 y=300-11x put the value of y in 1st 4x+300-11x=160 -7x=160-300 -7x=140 x=20 2 rupee coin =3x=60 5 rupee coin=x=20 4x+y=160 80+y=160 y=80 I rupee coin will be=80