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TS Police SI Mains 2023 Paper 3 · Question 30

Question 30 of the TSLPRB SI Final Written Examination 2023, Paper III (Arithmetic & Reasoning) (8 April 2023). Try it first, then open the answer and explanation.

  1. SI Mains 2023 Paper III · Q30 · Arithmetic · Numbers & Simplification

    If x is the least positive integer such that √(814968 × x) is a positive integer, then x =

    1. 231
    2. 154
    3. 924
    4. 462

    x అనేది √(814968 × x) ధనపూర్ణాంకమయ్యేటట్లు ఉండే కనిష్ట ధనపూర్ణాంకమైతే, x =

    1. 231
    2. 154
    3. 924
    4. 462
    Show answer

    Answer: (4) 462

    సమాధానం: (4) 462

    814968 = 8 × 101871 = 2³ × 3³ × 7³ × 11 (since 101871 = 27 × 3773 and 3773 = 7³ × 11). To make every exponent even, multiply by 2 × 3 × 7 × 11 = 462.

    814968 = 8 × 101871 = 2³ × 3³ × 7³ × 11 (ఎందుకంటే 101871 = 27 × 3773 మరియు 3773 = 7³ × 11). ప్రతి ఘాతాంకాన్ని సరి సంఖ్యగా చేయడానికి 2 × 3 × 7 × 11 = 462 తో గుణించాలి.

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