Two numbers are in the ratio 2 : 5. If 16 is added to both the numbers, their ratio becomes1 : 2. The numbers are :
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in 2:5, 2 is rep. as 2x and 5 is rep. as 5x
2x+ 16 / 5x+ 16 = 1/2(1:2 = 1/2)
cross multiplication
5x + 16 = 2(2x + 16)
5x + 16 = 4x + 32
5x - 4x = 32 - 16
x = 16
1st number = 2 * 16 = 32
2nd number = 5 * 16 = 80
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