A piece of work can be complete by P and Q together in 24 days, and the same piece of work can be completed by R alone in 60 days. If P and R together can do the same work in 36 days, then find the time taken by Q to complete this piece of work alone.
The following bar chart shows the runs given and overs bowled by a bowler in 6 different matches.
What will be the economy rate of the bowler for all the 6 matches taken together? [Give your answer correct to 2 decimal places.]
Economy rate = Runs given / Overs bowled
In a camp, there are tents of the same shape and size. Each tent is cylindrical up to a height of 4 m and conical above it. The diameters of the bases of the cylinder and the cone are both 10.5 m and the slant height of the conical part is 10 m. If a total of 3861 sq.m. canvas is used in making all the tents, then how many tents are there in the camp?
The simple interest on a certain sum of money for 2 years at 7% per annum is double the compound interest on ₹1,000 for 2 years at 10% per annum, compounded annually. What is the sum placed on simple interest?
The price of kerosene increases by 10% every year. If the current price of kerosene is ₹50 per litre, then what will be the price of kerosene per litre after 2 years?
In an election between two candidates, the total number of votes polled were 'y' . Out of these, 40% votes were invalid. The winning candidate got 60% of the valid votes, while the other candidate lost by 6000 votes. Find the value of 'y'.
