Question
How many such digits are there in the number 36215897,
each of which will occupy the same position when rearranged in descending order as in the number?Solution
There are 16 taps which are fitted in a tank .In which some are inlet pipes and some are Outlet pipes .Each inlet tap has the efficiency to fill the ...
A printing machine ‘P’ and a printing machine ‘Q’ can print a set of documents in 14 hours and 21 hours, respectively. If both machines work tog...
Pipe ‘A’ can fill a tank in 30 hours while pipe ‘B’ can empty it in 40 hours. They were operated on alternate hours starting with pipe ‘A’. ...
Pipe 'X' takes 50 minutes to fill the tank by itself, while Pipe 'Y' can fill it in 30 minutes on its own. What is the time required for both pipes to f...
Pipes A and B can fill a tank in 12 minutes and 15 minutes, respectively, while outlet pipe C can empty the entire tank in 1 hour. All three pipes are ...
An inlet pipe can fill a tank in 8 hours, whereas an outlet pipe can empty the same tank in 16 hours. Find the time taken by three such inlet pipes and ...
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...
Pipe ‘A’ and pipe ‘B’ can fill a cistern in 10 minutes and 12 minutes respectively. Pipe ‘C’ alone can empty the cistern in 12 minutes. If a...
Pipes A and B alone can fill a tank in 12 minutes and 18 minutes, respectively, while pipe C alone can empty the full tank in 36 minutes. If all the pip...
Pipe A and Pipe B could fill a tank together in 30 hours and 20 hours respectively, while pipe C could empty it in 12 hours. If both inlet pipes are ope...
