Question 1
1 Mark
What will be the difference in rupees in the simple interest and the compound interest earned on Rs. 5000 in 2 years at the rate 5 p.c.p.a.?
Options
Option A is correct
12.5
Option B
25
Option C
37.5
Option D
50
Questions & Answers: "Compound Interest"
Complete guide to "Compound Interest" for Math students. Below you will find important questions and model answers to help you prepare.
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Question 2
1 Mark
What is the compound interest (in rupees) for Rs. 10000 for two years six months, at the rate of 10 p.c.p.a.?
Options
Option A
2650
Option B
3310
Option C
2500
Option D is correct
2705
Question 3
1 Mark
Saurabh invested Rs. 5000 for 3 years at rate 10 p.c.p.a. with simple interest. Yashashri invested same amount for the same period at the same rate of interest with compound interest. Compare the interests earned by Saurabh and Yashashri. (Select two correct option)
Options
Option A
Interest received by Yashashri was less by Rs. 1655 than Saurabh received.
Option B is correct
Interest received by Yashashri was more by Rs. 155 than Saurabh received.
Option C
Interest received by Saurabh was more by Rs. 155 than Yashashri received.
Option D is correct
Interest received by Saurabh was less by Rs. 155 than Yashashri received.
Question 4
1 Mark
What will be the compound interest on Rs. 30,000 at the rate of 12% p.a. in 1.5 years?
Options
Option A
Rs. 5400
Option B
Rs. 6516
Option C
Rs. 5696
Option D is correct
Rs. 5616
Question 5
1 Mark
Find the compound interest for Rs. 48,000 for 1.5 years at the rate of 8 p.c.p.a.
Options
Option A
Rs. 4475
Option B
Rs. 4265
Option C
Rs. 4274
Option D is correct
Rs. 5914
Question 6
1 Mark
In how many years Rs. 15000 will be doubled at the rate of 12.5 p.c.p.a.?
Options
Option A
6 years
Option B
7 years
Option C is correct
8 years
Option D
12 years
Question 7
1 Mark
Find the difference between the compound interest and simple interest for 2 years on Rs. 10,000 at the rate 12 p.c.p.a.
Options
Option A
124
Option B
120
Option C is correct
144
Option D
240
Explanation
The difference between compound interest (CI) and simple interest (SI) for 2 years is given by the formula P * (R/100)^2. Given P = Rs. 10,000, R = 12 p.c.p.a. So, Difference = 10000 * (12/100)^2 = 10000 * (0.12)^2 = 10000 * 0.0144 = Rs. 144.
Question 8
1 Mark
Find the compound interest on Rs. 10,000 at the rate 10 p.c.p.a. for years.
Options
Option A is correct
Rs. 3975.50
Option B
Rs. 3875.50
Option C
Rs. 3795.50
Option D
Rs. 3857.50