Question
An inlet pipe can fill an empty tank in 16 minutes whereas
an outlet pipe can empty the fully filled tank in 32 minutes. Find the time taken by both the pipes together to fill half of the empty tank.Solution
Let the total capacity of tank be 32 litres (LCM of 16 and 32)
Efficiency of inlet pipe = (32/16) = 2 litres/minute
Efficiency of outlet pipe = (32/32) = -1 litre/minute
Required time = (0.5 × 32) ÷ (2 - 1) = 16 minutes
If 23 @ 18 = 9 and 29 @ 24 = 21', then 24 @ 19 = ?'. What will come in place of question mark?
63 :Â 45 : : 85 : ?
Select the option that is related to fourth letter-cluster in the same way second letter cluster is related to first letter-cluster.
Mango: Fr...
- Words given on the left side of (::) are related with each other by some Logic/Rule/Relation. Select the missing word/word pair on the right side of (::) f...
Select the combination of numbers that when placed sequentially in the blanks of the given series will complete the series.
6 _ 2 3 _ 1 _ _ 8 ...
Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster and th...
How many numbers are immediately preceded and succeeded by symbol?
6 7 @ # 2 8 8 $ 5 4 % 5 ! & # * 7 * + 9
Select the option that is related to the third number in the same way as the second number is related to first number and the sixth number is related t...
Select the option that is related to the third number in the same way as the second number is related to first number and the sixth number is related t...
520 : 648 :: 128 : ?
