3 Men Finish Painting A Wall In 8 Days. Four Boys Do The Same Job In 7 Days. In How Many Days Will 2 Men And 2 Boys Working Together Paint Two Such Walls Of The Same Size?a) 6 6/13 Daysb) 3 3/13 Daysc) 9 2/5 Daysd) 12 12/13 Days

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⟩ 3 men finish painting a wall in 8 days. Four boys do the same job in 7 days. In how many days will 2 men and 2 boys working together paint two such walls of the same size?a) 6 6/13 daysb) 3 3/13 daysc) 9 2/5 daysd) 12 12/13 days

3 men -> 8 days

as men decrease => days increase

=> 1 man ->24 days =>1 man's 1 day work = 1/24

4 boys -> 7 days

=> 1 boy ->28 days => 1 boy's 1 day work = 1/28

so 2 men + 2 boys 1 day work = 2/24 + 2/28 = 1/12+ 1/14 = 13/84

so 2men + 2boys finish 13/84 of work in 1 day

so days to finish total work = 84/13 i.e 6 6/13

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Question and Answer:

Home Aptitude

⟩ 3 men finish painting a wall in 8 days. Four boys do the same job in 7 days. In how many days will 2 men and 2 boys working together paint two such walls of the same size?a) 6 6/13 daysb) 3 3/13 daysc) 9 2/5 daysd) 12 12/13 days

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Home Aptitude

⟩ 3 men finish painting a wall in 8 days. Four boys do the same job in 7 days. In how many days will 2 men and 2 boys working together paint two such walls of the same size?a) 6 6/13 daysb) 3 3/13 daysc) 9 2/5 daysd) 12 12/13 days

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