Question
A sum of money at a specific
annual simple interest rate grows to Rs. 2900 in 3 years and Rs. 3500 in 5 years. Calculate the interest earned when this same amount is invested at a rate of 25% p.a. compounded annually for 2 years.Solution
ATQ,
Simple interest earned in two years = 3500 – 2900 = Rs. 600 Simple interest earned in 1 year = Rs. 300 So, sum invested = 2900 – 3 × 300 = 2900 – 900 = Rs. 2000 Desired interest = [(1.25)2 – 1] × 2000 = 0.5625 × 2000 = Rs.1125
A sphere is inscribed in a cylinder. The radius of the cylinder is 7 cm. What is the volume of the sphere?
Let f(x) = (3x–4)/(2x+1). Solve f(f(x)) = x.
What is the total percentage increase in enrollment for the Science stream from Year 1 to Year 3?
How many sides does a regular polygon with each interior angle measuring 140° have?
A group of 20 boys can complete a task in 15 days. Similarly, 24 girls can finish the same task in 20 days. If the ratio of the e...
24, 13, ?, 29, 117, 937
The following table shows the monthly sales of a company for the first five months of the year:
Which of the following software is also known as the end-user program?
Arjun, Bheem, and Chetan start a business with initial investments of Rs. (p+1500), Rs. 'p', and Rs. (p-1000) respectively.
Quantity I: If the t...
If 'P' represents the largest single-digit prime number, determine the fourth proportional to the numbers (P + 3), (P - 2), and (P + 5).
Relevant for Exams:
