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    Question

    A wall of 100 meters can be built by 7 men or 10 women

    in 10 days. How many days will 14 men and 20 women take to build a wall of 600 meters ?
    A 15 Correct Answer Incorrect Answer
    B 20 Correct Answer Incorrect Answer
    C 25 Correct Answer Incorrect Answer
    D 30 Correct Answer Incorrect Answer

    Solution

    Let the requied number of days be x. 7Men = 10 Women So 14 Men = 20 women Hence 14 men & 20 women = 20women + 20 women = 40 women According to question, `=>(10xx10)/100 = (40xx x)/600` x =`(100xx600)/(100xx40) = 15days`

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