Question 63
10 men can finish painting a wall in 8 days. How many more men will be needed if the painting work is to be finished in 4 days?
Solution
$$M1\times\ D1=M2\times\ D2$$
$$10\times\ 8=men\times\ 4$$
men=20
ie 10 more man needed to complete the work,
Hence option 'C' is correct.
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