Rahul has ₹260 coins of ₹1, ₹2, ₹5. The total value of money is ₹309. The number of ₹2 coins is 3 times the no. Of ₹5 coin. Find the number of each type of coins.
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Answer:
x+y+z=260
x +3z +z=260
x+4z=260. (1)
x +2y+5z=309
x+6z+5y=309
x +11z=309. (2)
solving(1) and (2)
-7z=-49
z= 7
x +4z=260
x+28=260
x = 260-28=232
x+y+z=260
232+y+7=260
y=260-239 = 21
x =232, y=2l, z=7
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