Question
(x + 7) workers finish 60% of a job in 9 days working 4
hours/day. The remaining work is done by (x + 3) workers in 12 days working 3 hours/day. Find x.Solution
According to the question,
{(x + 7) × 9 × 4}/0.60 = {(x + 3) × 12 × 3}/0.40
Or, 2x + 14 = 3x + 9
Or, x = 5
Hence, value of x is 5.
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