Subject

    Quantitative Aptitude

    Topic

    Fraction & Decimal

    In a department, 3/5 of the workers are men and the rest are women. If 1/2 of the men and 3/7 of the women in the department are over 35, what fraction of all the workers in the department are over 35 ?

    ক)
    33/70
    খ)
    66/70
    গ)
    33/140
    ঘ)
    35/140

    Explanation

    Solution:      LCM of 5, 2 & 7 = 70 So, men = 70 × \times 3/5 = 42 Women  = 70 - 42 = 28 Now, men over 35 = 42 × \times 1/2 = 21 Women 35 = 28 × \times 3/7 = 12 Total men & women 35 = 21+12 = 33 Required fraction = 33/70

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