Subject

    Quantitative Aptitude

    Topic

    Number

    What will come in place of the question mark (?) in the following number series? 30   35   45   (?)  105  185   345

    ক)
    65
    খ)
    60
    গ)
    50
    ঘ)
    55
    ঙ)
    None of these

    Explanation

    The pattern of given series is: → 30, → 35 = 30 + 5, → 45= 35 + 10, (5 × 2 = 10) → ? = 45 +20, (10 × 2 = 20) → ? = 65 → 105= 65 + 40, (20 × 2 = 40) → 185 = 105 + 80, (40 × 2 = 80) → 345 = 185 + 160, (80 × 2 = 160) Thus, the missing number is 65

    Find Tutors

    View all Tutors