A tap can fill the bath tub in 6 mins, a second tap can fill the bath tub in 3 mins, while a third tap can empty the bath tub in 4 mins. If all the three taps are opened together , how long will it take to fill the bath tub
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3
A tap fills bath tub = 6 minutes
Second tap fills bath tub in 3 minutes
Third tap can fill the empty bath tub in 4 minutes
So in 1 minute the first tap fills 1/6 th portion of bath tub
So in 1 minute the second tap fills 1/3 th portion of bath tub
So in 1 minute the third tap fills 1/4 th portion of bath tub
So totally they fill 1/6+1/4+1/3 in 3 minutes so
3 minutes = 9/12=3/4
1 minute = 1/4 part so total part in 4 minutes
Second tap fills bath tub in 3 minutes
Third tap can fill the empty bath tub in 4 minutes
So in 1 minute the first tap fills 1/6 th portion of bath tub
So in 1 minute the second tap fills 1/3 th portion of bath tub
So in 1 minute the third tap fills 1/4 th portion of bath tub
So totally they fill 1/6+1/4+1/3 in 3 minutes so
3 minutes = 9/12=3/4
1 minute = 1/4 part so total part in 4 minutes
Answered by
2
4 min is the answer............
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