In how many months will rs.4000 to rs.5000 at 10% PA simple interest

Question

In how many months will rs.4000 to rs.5000 at 10% PA simple interest

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Madeline 1 month 2021-08-14T00:14:27+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-08-14T00:15:50+00:00

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    7th

    Maths

    Comparing Quantities

    Simple Interest

    Rs.4,000 amount to Rs.5,000…

    MATHS

    Rs.4,000 amount to Rs.5,000 in 8 years; in what time will Rs.2,100 amount to Rs.2,800 at the same rate ?

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    ANSWER

    Simple Interest I=

    100

    PNR

    Given,

    AmountA=Rs5000

    P=Rs4000

    I=A−P=5000−4000=Rs1000

    N=8years

    So, 1000=

    100

    4000×8×R

    =>R=3.125 %

    Now, we need to find N when A=Rs2800;P=2100

    =>I=2800−2100=Rs700

    So, Rs700=

    100

    2100×N×3.125

    =>N=10years 8months

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