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  • A person invested Rs.1000 at a rate of 10% p.a. After two years, his investment fetched an interest of Rs.210. He must have invested the sum under

A person invested Rs.1000 at a rate of 10% p.a. After two years, his investment fetched an interest of Rs.210. He must have invested the sum under

  • Option 1)

     Simple Interest        

  • Option 2)

       Compound Interest   

  • Option 3)

    None of these.

  • Option 4)

       can't say

  • Option 5)

    either 1] or 2]        

Answers (1)

best_answer

S.I =\frac{\left \{ 1000\times 10\times 2 \right \}}{100} = 200

CI=1000\left ( 1+\frac{10}{100} \right )^{2}-1

=1000\left ( \frac{121}{100} -1\right )= \frac{21}{100}\times 1000

210  = which is required interest

So that the sum is put at compound interest

Posted by

rishi.raj

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