The difference between CI and SI on Rs. 6400 for 2 years at 6.25% is: MCQ with Answer and Explanation

The difference between CI and SI on Rs. 6400 for 2 years at 6.25% is:
A. Rs. 25
B. Rs. 30
C. Rs. 35
D. Rs. 20
Answer: Option A
Solution (By JKSSB Mock Tests)
6.25% = 1/16. D = P × (R/100)² = 6400 × (1/16)² = 6400 × 1/256 = Rs. 25.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Compound Interest Questions

Question #1
The difference between simple interest and compound interest on a certain sum of money for 3 years at 10% per annum is Rs. 186. Find the sum.
A. Rs. 5500
B. Rs. 6500
C. Rs. 6000
D. Rs. 7000

Correct Answer: Option C


Explanation:
Difference for 3 years = P * (R/100)^2 * (3 + R/100) => 186 = P * (10/100)^2 * (3 + 10/100) => 186 = P * (1/100) * (3.1) => 186 = P * 0.031 => P = 186 / 0.031 = Rs. 6000.

This question belongs to: Maths Compound Interest
Question #2
The compound interest on a sum for 2 years at 5% is Rs. 205. Find the sum.
A. Rs. 2100
B. Rs. 2000
C. Rs. 1900
D. Rs. 2200

Correct Answer: Option B


Explanation:
CI = P[(1.05)² − 1] = P × 0.1025 = 205 ⇒ P = 2000.

This question belongs to: Maths Compound Interest
Question #3
The value of a machine depreciates at the rate of 10% per annum. If its present value is Rs. 162000, what was its value 2 years ago?
A. Rs. 210000
B. Rs. 190000
C. Rs. 200000
D. Rs. 220000

Correct Answer: Option C


Explanation:
Value 2 years ago = 162000 / (1 - 10/100)^2 = 162000 / (0.9)^2 = 162000 / 0.81 = Rs. 200000.

This question belongs to: Maths Compound Interest