Question
5, 11, 19, 29, 41,
? What will come in place of the question mark (?) in the following number series?Solution
22 + 1 = 5 32 + 2 = 11 42 + 3 = 19 52 + 4 = 29 62 + 5 = 41 72 + 6 = 55
Two pipes, A and B, can fill a tank in 12 hours and 15 hours respectively, while a third pipe, C, can empty the tank in 10 hours. If all three pipes are...
Pipe ‘A’ and pipe ‘B’, together can fill 20% of a tank in 7 hours while pipe ‘C’ takes 40 hours to empty it. ...
Pipe X can fill a tank in 15 hours and pipe Y in 30 hours. If both the pipes are opened in an empty tank, how much time will they take to fill it?
Tap βAβ and tap βBβ can fill a tank in 56 hours and 49 hours, respectively. If both taps are opened together, then find the time after which tap...
Pipe L can fill a pool in 30 hours and pipe M in 45 hours. If both the pipes are opened in an empty pool, how much time will they take to fill it?
Tap A can fill tank X in 20 minutes, but with a leakage (tank Y), it takes 33(1/3) minutes to fill. Tap B operates at 20% less efficiency than Tap A. De...
Pipe 'C' alone takes 5 more hours to fill the tank than the time taken by pipe 'C' and pipe 'D' together. Find the approximate ti...
Pipe βXβ alone can fill a tank in 20 hours. When both pipes βXβ and βYβ are opened together, they can fill 75% of the tank in 9 hours. How m...
Pipe A alone fill the tank in x hours and Pipe B alone fill the tank in (x – 10) hours. If the efficiency of pipe B is triple of pipe A and pipe A...
- Pipe A can fill a tank in 20 hours and pipe B in 30 hours. If both the pipes are opened in an empty tank, how much time will they take to fill it?