Mathematics
NULL
Medium
Question
CI on a certain sum for 2 years is Rs.41 and SI is Rs.40. What is the rate percent?
A
4%
B
5%
✓ Official correct answer
C
6%
D
8%
Community credibility
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A
4%
No member explanations yet for this option.
B
5%
No member explanations yet for this option.
C
6%
No member explanations yet for this option.
D
8%
No member explanations yet for this option.
Explanation
Difference 1 = P(r/100)² and SI 40 = 2P(r/100) ⇒ r/100 = 1/20 ⇒ r = 5%.