For the following questions answer them individually
For a fraction if the numerator is increased by 20% and the denominator decreased by 20% we get $$\frac{4}{7}$$. Then the original fraction is
After two successive discounts of 10% each on the marked price of an item if a person bought it for Rs .810/-, then the marked (in rupees) of the item is
An article when sold at 5% profit yields Rs. 15 more than when it is old at a loss of 10%. The cost price (in rupees) of the article is
A and B enter into a partnership investing capitals in the ratio 3 : 4. At the end of the three months A has withdrawn and B continued for some time. If the profits are shared in the ratio 1 : 4 at the end of the business. the number of month B continued the busines is
A person P started a business and after 6 months Q joined him with an investment equal to one-third of P. The share of Q (in Rs.) in the year-end profit of R. 3,50,000/- is
Pipe P and Q can fill an empty tank individually in 9 hours and 12 hour respectively. If these are opened alternately every hour, starting with P, the pipe that fills the tank finally and the total time taken are given by
Tap A and B take 6 hours and 8 hours respectively to fill an empty tank and another tap C empties the full tank in $$x$$ hours. Due to a problem, tap C could not be closed. If it took 12 hour for them to fill the tank, then the value of $$x$$ is
Three trains A, B and C moving with respective speeds $$S_{1} S_{2}$$ and $$S_{3}$$ kmph take $$t_{1}, t_{2}$$ and $$t_{3}$$ hours respectively to cover a distance of $$x$$ km. If $$S_{1} : S_{2} : S_{3} = 3 : 4 : 5$$ , then $$t_{1} : t_{2} : t_{3}$$ =
A train takes 40 minutes to cover a distance of 60 km. If its speed is reduced by 15 kmph, then the time it takes (in minutes) to cover the same distance is
A person P is 3 time more efficient than another per on Q in doing a job. If Q alone needs 60 hours to complete the work then the time (in hours) required for P and Q together to complete it is