If the difference of the compound interest and the simple interest on a sum of money for 3 years is Rs. 186. Find the sum of money, if the rate of interest in both cases be 10 % 

Ratio of the income of A and B is 8 : 5, while expenditures is in the ratio 5 : 3. If they have saved Rs. 12,000 and Rs. 10,000 monthly respectively, then the difference in their monthly incomes is: 

Either 8 men or 17 women can paint a house in 33 days. The number of days required to paint three such houses by 12 men and 24 women working at the same rate is: 

On a certain principal if the simple interest for two years is Rs. 1400 and compound interest for the two years is Rs. 1449, what is the rate of interest? 

Peter bought an item at 20% discount on its original price. He sold it with 40% increase on the price he bought it. The new sale price is greater than the original price (in percent) by: 

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

3505 × 69.89 ÷ 102 – 1699=?

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

$$ 68\sqrt?-826=262 $$

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

9.5 % of 720 + 1.5 % of 320 = ?