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    Question

    A can complete 15% of the work in 20% of the allotted

    time. A and B worked for the entire period of the allotted time and the work was completed on time. What portion of the work was done by B?
    A 20% Correct Answer Incorrect Answer
    B 25% Correct Answer Incorrect Answer
    C 15% Correct Answer Incorrect Answer
    D 10% Correct Answer Incorrect Answer

    Solution

    Let the total time taken by them be 100 minutes. So,  20% of 100 minutes = 20 minutes Now, 15% of work is completed in 20 minutes by A 3% of work is completed in 4 minutes by A 75% of work is completed in 100 minutes by A If A can complete 75% in 100 minutes, then, B will complete the remaining portion i.e. (100 - 75) = 25%   25% of the work was done by B.

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