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CDS Simple Interest Test 288
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CDS Simple Interest Test 288

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  • Question 1/5
    1 / -0
    A person borrowed a sum at 6% per annum and returned Rs. 8400 after 1 year. Now the rate of interest becomes 5% per annum on the rest of the amount. If the interest of second year is of the first year SI. What was the amount borrowed?
    Solutions

    Let the amount borrowed = x.

    Hence, option c is the correct answer.

  • Question 2/5
    1 / -0
    In a certain time, a sum of money becomes 2.8 times itself if the rate of the interest is 15% p.a. Then the certain time (in years) is:
    Solutions
    Let principal = Rs.

    In a certain time, Rs.  becomes 2.8 times of itself if the rate of the interest is 15% p.a.

    Rate = 15%

    Amount = Rs. 2.8x

    Interest = Rs. 2.8x – Rs. x = Rs. 1.8x

    We know that

    ⇒

    ⇒

  • Question 3/5
    1 / -0
    If Rs. 7930 is divided and rented to A, B and C for 2 years, 3 years and 4 years respectively at the rate of simple interest of 5%. If they returned the equal money then how much did A borrow?
    Solutions

    Let A, B and C borrow  for 2 years, 3 years and 4 years respectively at the rate of simple interest of 5%.

     …(i)

    According to the question,

    A borrowed Rs.2760.

  • Question 4/5
    1 / -0
    A sum of money invested at simple interest amounts to Rs 6192 at the end of six years and Rs, 8784 at the end of twelve years. Find the principle
    Solutions

    It is given that

    Amount after 6 years= Rs.6192

    Amount after 12 years=Rs.8784

    Interest from year to year i.e., interest for a period of 6 years

    Principal=Amount after 6 years- Interest for 6 years

  • Question 5/5
    1 / -0
    A man borrows Rs. 2550 to be paid back with compound interest at the rate of 4% per annum by the end of 2 years in two equal yearly installments. How much will each installment be ?
    Solutions

    Let each installment be Rs. .

    Present value of 1st installment + present value of 2nd installment = sum borrowed

    i.e.

     

     

     

      Rs. 1352

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