The cost of fencing a circular plot at the rate of Rs.15 per meters Rs. 3,300. What will be the cost of flooring the plot at the rate a Rs . 100 per square meter? 

A, B, and C started a business. A invest 3,20,000 for 4 months and B invest 5.10,000 for 3 months and C invest 2,70,000 for 5 months. If the end of the year they get total profit of Rs. 1,24,800. Then find the share of B?

The mean of four different observations is 17.5. When a new observation whose value 20 is added, what will be the new mean?   

A pipe of diameter d can drain a certain water tank in 40 minutes. The time taken by a pipe of diameter 2d for doing the same job in: 

If the instalments are paid at the end of every year, what annual payment will discharge a debt of Rs. 7,200 due in 3 years at 20% per annum simple interest?

The average of the squares of first ten natural numbers is 

Study the following graph and answer the question that follow.
From which institute is the difference between the appeared candidates and passed candidates maximum?

If $$ {x=2-2^{1\over 3}+2 ^{2\over 3}}$$, then the value of $$ {x^{3}-6x^{2}+18x+18}$$.