Question
The total investment by P and Q is Rs. 7500. P invests
his amount at a simple interest rate of 30% per annum for 4 years, while Q invests his amount at a compound interest rate of 40% per annum, compounded annually for 2 years. The combined interest received by both is Rs. 7800. Determine the amount received by P.Solution
ATQ, Let the sum invested by P be Rs.'p' Therefore, sum invested by Q = Rs. (7500 – p) According to the question, (p × 4 × 30)/100 + (7500 – p)(1 + 40/100)2 – (7500 – p) = 7800 Or, (6p/5) + 0.96(7500 – p) = 7800 Or, p = 3000/1.2 = Rs.2500 Therefore, amount received by P = (2500 × 30 × 4)/100 + 2500 = Rs. 5500
Rahul deposited an amount ‘Q’ in a plan A and earned Rs. 300 as interest after one year. He then added Rs. 600 to the amount and re-invested the ent...
Bittu, Tittu and Mitthu invested Rs. 80000, Rs. 100000 and Rs. 120000 respectively to start a business. Partnership condition is that, each will get int...
A man invested Rs. 'r' in scheme 'E' offering simple interest at 14% for 6 years and Rs. 3,000 in scheme 'F' offering simple interest at 10% for 3 years...
A certain sum of money becomes 6 times of itself in 25 years at simple interest. In how many years does it become double of itself at the same rate of s...
The interest received by investing Rs. 4500 for 2 years at compound interest of 20% p.a., compounded annually, was re-invested for 3 years at simple int...
What will be the amount if a sum of Rs. 6500 is placed at compound interest for 3 years while the rate of interest for the first, second and third years...
Naina lent Rs. 10,000 to Mohini for 4 years and Rs. 15,000 to Mitali for 6 years on simple interest at the same rate of interest and received Rs. 2,600 ...
An initial investment made at a 25% annual interest rate, compounded semi-annually, grows to Rs. 10,125 after one year. How much simple interest would t...
The difference between the compound interest, compounded annually and simple interest on Rs. ‘P’ at the rate of 25% p.a. for 2 years, is Rs. 120. If...
A certain sum of money becomes Rs. 1250 in 1 year and 2500 in 3 years at certain rate of simple interest. Find the sum of money invested.
