Efficiency of man, boy, and woman:
10 men = 15 boys = 30 women or 2 men = 3 boys = 6 women
Therefore, m : b : ω = 18 : 12 : 6 or 3 : 2 : 1
Total work = 30 units
Required days=
= = 5 days
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60 Mins English English20 Questions40 Marks12 Mins English English80 Questions160 Marks60 Mins EnglishX alone can complete a work in 56 days and Y alone can do it in 72 days. both completed in:
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