Question
A man spends 72% of his income. If his income increases
by 28% and his expenditure increases by 25%, then what is the percentage increase or decrease in his savings (correct to one decimal place)?Solution
- Pipe 'A' is 3 times as efficient as pipe 'B'. Pipe 'C', which is one-third as efficient as pipe 'B', can fill a tank alone in 36 hours. Find difference bet...
Tap A and Tap B fill a drum of volume 648 liters in 12 minutes. If their efficiencies are in the ratio x:y respectively and B alone takes to fill the c...
Pipe E can fill a tank in 40 minutes while pipe F can fill the same tank in 50 minutes. If pipe E and F are opened simultaneously, then after how much t...
Two pipes M and N can fill a tank in 10 hours and 15 hours respectively. The pipes were opened together, but pipe N stopped working after sometime and ...
Two inlet pipes M and N alone can fill a tank in 12 hours and 16 hours respectively and an outlet pipe P alone can empty the whole tank in 8 hours. Firs...
Two inlet pipes M and N alone can fill a tank in 12 hours and 15 hours respectively and an outlet pipe P alone can empty the whole tank in 10 hours. Fir...
Tap A is 200% more efficient than tap B. Both the taps together can fill the tank in 6 hours. Find the time taken by tap C, which is 100% more efficien...
Time taken by ‘A’ to fill a tank, which is 40% empty, is 20 minutes, while time taken by ‘B’ to fill the same tank, when it is 25% full, is 30 ...
Pipe A fills a tank in 60 minutes, and pipe B can do it in 90 minutes. There’s also a pipe C that drains the tank in 180 minutes. If all three pipes a...
Pipe M can fill a tank in 10 hours, and pipe N can do the same in 30 hours. Pipe O can drain half the tank in 6 hours. If all pipes are opened at once, ...
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