New RBI Grade B 2025 Notification will come Soon! Enroll Here

    Question

    If the difference between C.I. and S.I. is Rs. 512 at

    20% rate of interest in 3 years, then find the principal on C.I.?
    A 3600 Correct Answer Incorrect Answer
    B 4000 Correct Answer Incorrect Answer
    C 5400 Correct Answer Incorrect Answer
    D 6400 Correct Answer Incorrect Answer

    Solution

    We have the formula, Difference = (P×R²(300+R))/100³ 512 = (P×(20)²(300+20))/((100)³) (512×100×100×100)/(20×20×320) = P P = Rs. 4000

    Practice Next

    Relevant for Exams: