The rate of interest for the first 2 years is 6% p.a., for the next 3 years is 10% p.a., and for the period beyond 5 years is 12% p.a. If a person gets ₹12,771 as simple interest after 7 years, then how much money did he invest?

The following bar chart shows the exports (in ₹'0000) of an item from a country 5 consecutive years.

What is the average value of the export of that item from the given country per year?

P, Q and R enter into a partnership. P invests Rs. 8000 for the whole year, Q puts in Rs. 12000 at the first and increasing to Rs. 16000 at the end of 4 months, whilst R puts in at first Rs. 16000 but withdraw Rs. 4000 at the end of 9 months. Find the profit of P at the end of year, if the total profit is Rs. 22600.

If $$64^{x+1}={64\over 4^x}$$, then the value of x

Study the given graph and answer the question that follows.

In how many years was the revenue of the company more than 1.2 times the average expenditure over the given five years?

Ms. Deksha borrow Rs. 575 at 5 % per annum simple interest. What amount (in rupees) will she pay to clear her debt after 4 years?

Three numbers are in the ratio 1 : 2 : 3 and the sum of their cubes is 4500. What is the smallest number?

The numerical value of $$ {1\over 1+cot2}+{3\over 1+tan^2θ}+2sin^2θ$$ will be