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A sum of money fetches a certain interes...

A sum of money fetches a certain interest when it is invested for 4 years at the rate of 8% per annum. If it is invested for 6 years, then the interest increases by 640. Find the sum of money.

A

4050

B

2000

C

2050

D

4000

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Knowledge Check

  • A sum was invested on simple interest at a certain rate for 2 years. If the interest rate is increased by 4%, then the interest increases by Rs 160. What is the sum (in Rs) invested?

    A
    2000
    B
    3000
    C
    3500
    D
    4000

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    A
    `Rs. 3.50`
    B
    `Rs. 7 `
    C
    `Rs. 14 `
    D
    `Rs. 35`

  • A sum of money becomes (7)/(6) of itself in 3 years at certain rate of simple interest. The rate per annum is

    A
    `5(5)/(9)%`
    B
    `6(5)/(9)%`
    C
    18%
    D
    25%

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