Sum of ninth, tenth and eleventh number = 20 × 90 – 8 × 81 – 9 × 40 = 792 Let tenth number = x = eleventh number So, ninth number = 0.75 × x = 0.75x So, x + 0.75x + x = 792 Or, 2.75x = 792 Or, x = 288
A certain amount will become six times in 20 years. How long does it take for the same amount to become 5 times? Assume the same rate of simple interest...
A sum is lent on compound interest for 2 years at 11% p.a. If the compound interest on the sum is Rs.3713.6, find the sum.
"R" made certain investments with a 40% annual compound interest rate that is compounded quarterly. If, 9 months later, he receives Rs. 1,99,650, then t...
Ajay invested a sum of money, represented as Rs. 'x', in a financial plan that yields a 10% annual compound interest. After three years, the total inter...
Simple interest and compound interest (compounded annually) earned on a sum at the end of 2 years at a certain rate of interest p.a. are Rs. 1200 and Rs...
The simple interest on a certain sum is one-eighth of the sum when the number of years is equal to half of the rate percentage per annum. Find the simpl...
The simple interest received on a sum is 25/36 of the sum. The number of years is equal to the annual rate of interest. What is the annual rate of inte...
Meera deposited Rs. ‘W’ in a bank offering compound interest of 9% p.a. compounded annually. After 3 years, she invested the amount received from th...
Rs.7600 is divided into two parts such that if one part be invested at 4% and the other at 5%, the annual interest from both the investments is Rs. 336....
A vessel contains 120 liters of a mixture of milk and water, with 75% of it being milk. If 30 liters of this mixture is replaced by 30 liters of water, ...
