Find The Principal ? If

A sum of money lent out at simple interest amounts to Rs.720 after 2 years and Rs.1020 after a further period of 5 years. Find the principal

  1. Rs. 1740
  2. Rs.120
  3. Rs.6000
  4. Rs.600
Anurag Mishra Professor Asked on 14th August 2015 in Maths.
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  • 1 Answer(s)

    Answer: (4) Rs. 600

    Explanation:-
    The amount of money after two years = Rs. 720
    The amount of money after seven years = Rs. 1020

    The simple Interest of five years = 1020 – 720
    = Rs. 300
    Then, the simple interest for one year = 300/5
    = Rs.60
    Therefore, the simple interest for two years = 2 x 60
    = Rs. 120

    Then, Principal = 720 – 120
    = Rs. 600
    Hence, the answer is (4) Rs.600.

     

    Anurag Mishra Professor Answered on 14th August 2015.
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