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

    Question

    The total number of phones to the total number of

    laptops in Stores A and B is in the ratio 120:13. Additionally, the number of laptops in Store A to those in Store B is in the ratio 3:4. Given that the total number of phones across both stores is 600, determine the approximate difference in the number of laptops between Store A and Store B.
    A 9 Correct Answer Incorrect Answer
    B 29 Correct Answer Incorrect Answer
    C 39 Correct Answer Incorrect Answer
    D 44 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ;

    Total phones : total laptops = 120 : 13

    Total phones = 600

    So total laptops = (13/120) × 600 = 65

    Ratio of laptops in Store A : B = 3 : 4

    Difference = 65 × (3−4)/(3+4) = 9.29 (rounded to 9)

    Practice Next

    Relevant for Exams: