Let the speed of the boy in still water be x kmph. Then, (x + 5) × 3 = (x – 5) × 8 => 3x + 15 = 8x - 40 => 5x = 55 => x = 11 kmph
A person deposited Rs. 30,000 in a savings account that earned simple interest at a rate of 'x%' per annum. After 2 years, the total amount in the accou...
Rs.7800 is divided into two parts such that if one part be invested at 3% and the other at 5%, the annual interest from both the investments is Rs. 320....
If the ratio of the sum invested and simple interest received after 1 year is 20:9 respectively, then find the rate of interest.
A man wants to invest Rs. 60660 in bank accounts of his two sons whose ages are 12 years and 16 years in such a way that they will get equal amount at a...
If Rs. 25,000 is loaned at a compound interest rate of 50% per annum, and the interest is compounded once every year, what will t...
The interest earned on investing Rs. 6000 for 2 years at the rate of 8% p.a., compounded annually, is used to purchase an article. If the article is lat...
Vishal has certain sum of money with him. He invested 80% of the sum in scheme ‘X’ offering 15% p.a. simple interest for 8 years and received Rs. 39...
A sum of Rs. 2600 is invested at simple interest for 2 years. If the rate interest for first year is 10% p.a. while 18% p.a. for second year, then find ...
When 19.62% of Pawan's monthly salary, which is the total of 15721.33 and 19678.9, is equally distributed among four different SIPs, what is the approxi...
Anjali invested Rs.6000 in a scheme offering compound interest of x% p.a. compounded annually. If at the end of 2 years, interest received by her from t...
