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    Find the compound interest (in ₹, rounded off to the nearest integer) on ₹2,55,000 in 1.5 years at 8% per annum, the interest being compounded&nb
    Question

    Find the compound interest (in ₹, rounded off to the nearest integer) on ₹2,55,000 in 1.5 years at 8% per annum, the interest being compounded half-yearly.

    A.

    34,180

    B.

    32,480

    C.

    31,840

    D.

    31,480

    Correct option is C

    Given:

    Principal (P) = ₹2,55,000

    Rate (R) = 8% p.a.

    Time = 1.5 years

    Compounded = Half-yearly

    Formula Used:

    A = P (1+R2×100)2T\left(1 + \frac{R}{2 \times 100}\right)^{2T}

    CI = A - P

    Solution :

    Half-yearly rate =82=4% \frac{8}{2} = 4\%​​

    No. of half-years = 1.5×2=31.5 \times 2 = 3

    A = 255000×(1+4100)3255000 \times \left(1 + \frac{4}{100}\right)^3 ​​

    A =255000×(1.04)3 255000 \times (1.04)^3

    A = 255000×1.1248642,86,840255000 \times 1.124864 \approx 2,86,840

    CI =286840255000=31,840 286840- 255000 = 31,840​​

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