A certain amount of money is lent out at compound interest at the rate of 20% per annum for two years, compounded annually. It would give Rs. 482 more if the amount is compounded half yearly. Find the principal.

Anil, Deepak, and Dinesh together can complete a work in 35 days. Anil and Dinesh together can complete the same work in 60 days. In how many days Deepak alone can complete the same work?

The smallest perfect square divisible by each of 6, 12 and 18 is : 

The average of eight successive numbers is 6.5. The average of the smallest and the greatest numbers among them will be: 

Three numbers are in the ratio 5: 7: 12. If the sum of the first and the third numbers is greater than the second number by 50. The sum of the three numbers is 

if the square root of 841 is 29, then square root of 0.0000084 is equal to: 

Arun buys one kilogram of apples for Rs . 120 and sells it to Swati gaining 25 %. Swati sells it to Divya and Divya again sells it for Rs. 198, making a profit of 10 %. What is the profit percentage made by Swati? 

The price of tea increase by 32 % and so a housewife’s expenditure on tea also increases by 10%. If she bought 10 kg earlier, what is the quantity bought now?