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Two numbers are in the ratio 3 : 5. Their L.C.M is 90. Find the sum of the numbers.

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answer is D.

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Detailed Solution

L.C.M = 90

Ratio = 3 : 5

Numbers 3x, 5x

L.C.M of $3 x, 5 x = 15 x$

15x = 90

x = 6

3x = 18

5x = 30

Sum = 18 + 30 = 48

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