Discussion :: Time and Work
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10 women can complete a work in 7 days and 10 children take 14 days to complete the work. How many days will 5 women and 10 children take to complete the work?
Answer : Option C
Explanation :
1 woman's 1 day's work =\( \frac { 1 } {70 } \)
1 child's 1 day's work =\( \frac { 1 } {140 } \)
(5 women + 10 children)'s day's work =[\(\frac { 5 } { 70 } \)+\( \frac { 10 } {140 } ]\)=[\( \frac { 1 } { 14 } \)+\( \frac { 1 } { 14 } \)]=\( \frac { 1 } { 7 } \)
5 women and 10 children will complete the work in 7 days.
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