Question
412, 537, 573, 916, 980, ?
What should come in place of the question mark (?) in the following number series?Solution
412 + 5³ = 537 537 +6² = 573 573 + 7³ = 916 916 + 8²= 980 980 + 9³ = 1709
A pump can fill a tank with water in 2 hours. Because of a leak in the tank it was taking 7/3 hours to fill the tank. The leak can drain all the water o...
Pipe ‘A’ and pipe ‘B’, together can fill 32% of a tank in 8 hours while pipe ‘C’ takes 35 hours to empty it. ...
Tap A can fill a tank in 8 hours. Tap B can fill 12.5% part of the same tank in 2 hours, whereas Tap C can alone empty a tank in ‘x’ hours. 5/8 part...
Pipe ‘A’ and pipe ‘B’ can fill a cistern in 18 minutes and 20 minutes respectively. Pipe ‘C’ alone can empty the cistern in 12 minutes. If a...
Pipes ‘A’ and ‘B’ can fill a tank in 6 hours and 8 hours, respectively and pipe ‘C’ can empty the full tank in 12 hours. All three pipes are...
Pipe ‘A’ takes 40 minutes to fill a tank. Pipe ‘B’ takes 50 minutes to empty the same tank. If pipe ‘B’ is opened 21...
Pipe ‘A’ can fill a tank in 16 hours. Pipe ‘B’ is ____% as efficient as pipe ‘A’. If both pipes are opened simultaneously, the tank will be ...
Pipe 'A' alone takes 30 minutes to fill half of the tank. Pipe 'B' is twice as efficient as pipe 'A'. Find the percentage of the tank filled by both in...
Tap ‘A’ and tap ‘B’ can fill a tank in 45 hours and 35 hours, respectively. If both taps are opened together, then find the time after which tap...
Pipe ‘A’ can fill a tank in 25 hours while pipe ‘B’ can empty it in 30 hours. They were operated on alternate hours starting with pipe ‘A’. ...
Relevant for Exams:
