14pumps of equal capacity can fill a tank in 6 days.If the tank has to be filled in 4 days,the number of extra pumps needed is
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2
In 6 days 14 pumps can fill
in 1 day 6×14 pumps can fill
in 4 days (6×14)/4 pumps can fill
= 21 pumps
no of extra pump needed (21-14) =7 (ans)
in 1 day 6×14 pumps can fill
in 4 days (6×14)/4 pumps can fill
= 21 pumps
no of extra pump needed (21-14) =7 (ans)
Answered by
4
Answer:
In 6days 14pumps can fill
So,
In 1 day = 6 × 14
= 84
In 4 day = 84 / 4
= 21 pumps
Extra pumps needed = 21 - 14 = 7.
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