Sarthaks Test
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If the work done by (x – 1) men in (x + 1) days and the work done by (x + 2) men in (x – 1 ) days are in the ratio 9 : 10, then the value of x is equal to : 

(a) 5 

(b) 6 

(c) 7 

(d) 8

1 Answer

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Best answer

Correct option (d) 8

Explanation:

 Put values in formula

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