Question
If the product of two numbers is 90 and their HCF is 6,
then find the LCM of the given two numbers.Solution
We know that for two given numbers,
L.C.M X H.C.F = Product of the given two numbers
ATQ, L.C.M X 6 = 90
So, L.C.M = (90/6) = 15
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...
There was a leakage in the petrol tank. If 5litre of petrol is leaked out per day then it would have lasted for 30 days. If the leakage was 7litre per d...
- Pipes ‘D’ and ‘E’ alone can fill a tank in 16 minutes and 24 minutes, respectively, while pipe ‘F’ can empty the same tank in 48 minutes. If al...
A Tank has two pipes one can fill it with water in 16 hours and other can empty it in 10 hours. In how many hours will the Tank be emptied if both the p...
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’. ...
There are 4 inlet and (y-3) outlet pipes attached to a tank. Each inlet pipe takes 30 hours to fill the tank, and each outlet pipe empties the fully fil...
An inlet can fill a tank in 36 minutes, and an outlet can drain it in 54 minutes. Find the time required to fill half the tank when both pipes are open.
Pipe ‘A’ can fill 25% of a tank in 6 hours while pipe ‘B’ takes 40 hours to empty fully filled tank. Pipe ‘A’ is ope...
A bought an article at 8% less of the marked price and sold it at 15% more than the marked price. Find the profit earned by him.
Pipe X can empty a completely filled tank in 60 hours. Pipe Y and X together can fill an empty tank completely in (z+6) hours. The efficiency of pipe Y ...
