the sum of two numbers is 45 and their ratio is 7:8 then the large number is
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let the numbers be 7x and 8x
7x+8x=45
15x=45
x=3
so numbers are 7x=7*3=21
8x=8*3=24
7x+8x=45
15x=45
x=3
so numbers are 7x=7*3=21
8x=8*3=24
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