A) 48 days
B) 20 days
C) 44 days
D) 24 days
Correct Answer: A
Solution :
| [a] One man's 1 day work\[=\frac{1}{88}\] One woman's 1 day work\[=\frac{1}{176}\] One boy's 1 day work\[=\frac{1}{264}\] (One man + One woman + One boy)'s 1 day work\[=\frac{1}{88}+\frac{1}{176}+\frac{1}{264}\] \[=\frac{6+3+2}{528}=\frac{11}{528}\] So, one man, one woman and one boy can do a work \[=\frac{528}{11}\]days = 48 days |
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