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Simple interest

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  1. If ratio of principal and simple interest for 1 year is 25 : 1, then the rate of interest is
    1. 4%
    2. 25%
    3. 5%
    4. 20%
Correct Option: A

Given that , Principal : Interest = 25 : 1
⇒ Interest : Principal = 1 : 25

∴ Rate =
Simple Interest × 100
Principal × Time

Rate =
1
 × 100 = 4% per annum
25


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