3 men or 5 women can solve a problem in
3 days. In how many days can 1 man and
2 women solve the same problem?
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Answer:
45/11 days
Step-by-step explanation:
3 men can do 1 problem in 3 days.
3 men can do 1/3 problems in 1 day.
1 man can do 1/9 problems in 1 day
In the same way,
1 woman can do 1/15 problems in 1 day
New number of people = 2 women and 1 man
= 2/15 + 1/9
= 6/45 + 5/45
= 11/45
=> 2 women and 1 man solve 11/45 problems in 1 day
=> 2 women and 1 man solve 1 problem in 45/11 days.
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