Arithmeticmedium · Past Paper
If the ratio of Principal and Amount is 4:5, what is the rate of interest for 1 year?
A20%
B25%
C10%
D5%
✓ Correct Answer: B — 25%
Interest = 5 - 4 = 1. R = (1 * 100) / (4 * 1) = 25%.
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