the cost of 63 prizes is 3000rs in this prizes there are 100rs prizes and 25rs prizes how many are they each type
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x+y=63 100x+25y=3000 duide 2 by 25 4x+y =120 equ 3 and 1 3x= 120-63 x=40-21 x=19 y= 63-19 =44 answer is x=19 and y=44
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