Subject

    Quantitative Aptitude

    Topic

    Number

    Two-fifth of one-fourth of three seventh of a number is 15. What is the half of the number?

    ক)
    175
    খ)
    157
    গ)
    75
    ঘ)
    57

    Explanation

    ধরি, সংখ্যাটি = x প্রশ্নমতে, (2x/5) এর (1/4) এর (3/7) = 15 ⇒ 3x/70 = 15 ∴ x = 350 ∴ সংখ্যাটির অর্ধেক = 350/2 = 175

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