awards has only 2 rupee and 5 rupee coin the sum of the coin is 36 and the total value of the coin is rupees 84 find the number of 5 rupee coin
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let 2 rs coin =x and 5 rs coin =y
now x+y =36
and 2x+5y=84
from EQ 1
5x+5y=180 now subtracting these EQ
-3x= -96 =x=32. by putting value of x we get y=4 so no of 5 rs coin =4
now x+y =36
and 2x+5y=84
from EQ 1
5x+5y=180 now subtracting these EQ
-3x= -96 =x=32. by putting value of x we get y=4 so no of 5 rs coin =4
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