If a sum of money becomes 8 times in 9 years at compound interest annually, in how much time it will become 32 times?

A, B and C invest to start a restaurant. The total investment was Rs 3 lakhs. B invested Rs 50,000 more than A and C invested Rs 25,000 less than B. If the profit at the end of the year was Rs 14,400 then what is C's share of the profit (in Rs)?

In a 200 meter race, Ram beats Shyam by 35 meter or 7 seconds. What is Ram’s time over the course?

If $$ {tan3A=cot{(2A+40)}}$$ then find the value of $$ {tan^2{3A}}+{cot^{4}3A}$$.

Find the equation of the line that passing through the point (7, -5 ) and is perpendicular to  the line (4x+5y=1).

If $$ a={{\sqrt{3}+\sqrt{2}}\over {\sqrt{3}-\sqrt{2}}}$$ and $$ b={{\sqrt{3}-\sqrt{2}}\over {\sqrt{3}+\sqrt{2}}}$$, then find the value  of $$ {a^2\over b}+{b^2\over a}=?$$

If a nine Digit number 785x3678y is divisible by 72, then the value of (7x- 5y) is:

The population of Jaipur is 20,00,000. If it is increased by 5 %, 10%, 20% respectively in the next three years, then find the population of Jaipur after 3 years.