Multiple Choice Questions on A sum of money amounts to Rs 6690 after 3 years and to Rs 10 035 after 6 years on compound interest ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A sum of money amounts to Rs 6690 after 3 years and to Rs 10 035 after 6 years on compound interest ...........

Quantitative Aptitude ( CCS) Compound Interest
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    A sum of money amounts to Rs.6690 after 3 years and to Rs.10,035 after 6 years on compound interest.find the sum.

    4360

    Incorrect Answer

    4260

    Incorrect Answer

    4460

    Correct Answer

    4560

    Incorrect Answer
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    Explanation:

    Let the sum be Rs.P.then
    P(1+R/100)^3=6690…(i) and P(1+R/100)^6=10035…(ii)
    On dividing,we get (1+R/100)^3=10025/6690=3/2.
    Substituting this value in (i),we get:
    P*(3/2)=6690 or P=(6690*2/3)=4460
    The sum is rs.4460.

    Hence, option 3 is the correct answer.

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