A can do a piece of work in 20 days and B in 30 days. They work together for 7 days and then both leave the work.  Then C alone finishes the remaining work in 10 days. In how many days will C finish the full work?

Find the exact value of the following question:

$$ 1280÷{2^3} + 1220÷{2^2}-182=?$$

Solve: 0.05 × 0.4 

If the compound interest on a certain sum for two consecutive years is Rs.220 and Rs.242, then the rate of interest per annum is 

A certain amount of money earns Rs. 540 as simple interest in 3 years. If it earns a compound interest of Rs. 376.20 at the same rate of interest in 2 years, find the amount.

A shopkeeper has certain number of eggs of which 5% are found to be broken. He sells 93% of the remainder and still has 266 eggs left. How many eggs did he originally have?

After 4 years, the difference between principal and simple interest is Rs. 228 at the rate of 6 percent simple interest, so what is the amount of principal?

Direction : What value should come in the place of question mark (?) in the following questions?

3505 × 69.89 ÷ 102 – 1699=?