For the following questions answer them individually
A shopkeeper sells an article at 10 percent loss after giving a discount of 20 percent. What is the ratio of cost price and marked price of article?
The speed of a boat in still water is 9 km/hr and the speed of the stream is 6 km/hr. If a man goes a distance of 45 km against the stream and comes back to the starting point, then what is the total time taken by him?
A and B enter into a partnership such that 5 times of A's investment is equal to 7 times of B's investment. If the total profit is Rs. 1200, then what is the share of A?
The difference between compound interest and simple interest on an amount Rs. 14,400 for 2 years is Rs. 3600. Find the rate of interest.
By selling a glass for Rs. 1378 a man earns a profit of 6 percent. If he sells it for Rs. 1079, then what will be the loss percent?
Find the weight of a cylindrical iron container with base radius 12.6 cm and height is 4 m, where the weight of 1 $$cm^{2}$$ of iron is 2 grams?
The pie chart given below shows the number of boys in 8 schools. The total number of boys in all these 8 schools is 8000. Number of boys in a particular school is shown as a percent of total number of boys in all these 8 schools.
What is the sum of average number of boys in P, R, T and W and the average number of boys in Q and V?