New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    (x + 9) laborers complete 45% of a task in 12 days working

    5 hours/day. The rest is done by (x + 4) laborers in 18 days working 5 hours/day. Find x.
    A 16 Correct Answer Incorrect Answer
    B 5 Correct Answer Incorrect Answer
    C 3 Correct Answer Incorrect Answer
    D 18 Correct Answer Incorrect Answer
    E 10 Correct Answer Incorrect Answer

    Solution

    According to the question,
    {(x + 9) × 12 × 5}/0.45 = {(x + 4) × 18 × 5}/0.55
    Or, 22x + 198 = 27x + 108
    Or, x = 18
    Hence, value of x is 18.

    Practice Next