Question
The ages of A, B and C together are 32 years. B is twice
as old as A and C is 4 years older than A. What is the difference between ages of B and C?Solution
Let A’s age be x years. B’s age = 2x and C’s age = (4 + x) According to question, => x + 2x + (4 + x) = 32 => 4x = 28 => x = 7 B’s age = 2x = 14 years C’s age = 4 + x = 11 years Difference between the ages of B and C = 14 – 11 = 3 years
A person invests ₹8000 in a scheme offering 5% simple interest per annum. After 2 years, the total amount becomes ₹8800. How much interest is earned...
A sum of ₹6,450 is invested for 3.5 years at a certain annual rate of simple interest, yielding a total interest of ₹2,709. If ₹3,500 is then inve...
- Rahul lent Rs. 10,000 on simple interest at 6% annually for 3 years. Find the amount returned to him after the period.
- Rohit invested Rs. ‘x’ at the rate of 10% p.a. simple interest for 4 years and Anil invested Rs. 70% of x at 8% p.a. compounded annually for 2 years. I...
The compound interest on a certain amount, compounded semi-annually at a rate of 10% per half year for one year, is Rs. 810 less than the simple interes...
- A man puts Rs. 3,000 in a scheme and gets a simple interest of Rs. 540 in 2 years and 4 months. What is the rate of interest per annum?
A sum of ₹12,000 is invested at an annual interest rate of 10% for 2 years. What is the difference between the compound interest and simple interest a...
Atul has Rs.550 with him. He invested 40% of the amount at 5% p.a. for 6 years and rest at 20% p.a. for 5 years. Find the sum of simple interests receiv...
The interest received on investing Rs. (5p + 500) on simple interest at 10% p.a. for 4 years is Rs. (3p + 100). Find the ratio (p - 50) :(p + 50).
Simple interest earned on an amount of Rs.1600 at rate of R% per annum after 3 years is Rs.336. Find the simple interest earned on an amount of Rs.1500 ...
Relevant for Exams:
