1.

Solve for `x : (x)/(5) + (x)/(7) = 12`A. 70B. 140C. 35D. 105

Answer» Correct Answer - c
Given
`(x)/(5) + (x)/(7) = 12`
`rArr (7x + 5x)/(35) = 12`
`rArr 12x = 12 xx 35`
`rArr x = (12 xx 35)/(12) = 35`
Hence, the correct option is (c)


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