exam
Maths Puzzle
Numerical Ability
A small pump takes 14 hrs to empty the storage tank. A medium pump would take 8 hrs. A large pump would take 6 hours.
How long would it take the small and medium together?
Read Solution (Total 1)
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- L.CM OF 14,8,6 IS 168
FOR A SMALL PUMP 168/14=12
FOR MEDIUM PUMP=168/8=21
FOR LARGE PUMP=168/6=26
SO ALL THREE IN THE RATIO OF 12:21:28
FOR SMALL AND MEDIUM PUMP 12+21=33
SO ANS IS 168/33. - 10 years agoHelpfull: Yes(0) No(0)
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