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OG 18, question-333

This topic has 2 expert replies and 0 member replies

OG 18, question-333

Post Wed Sep 20, 2017 11:34 pm
Elapsed Time: 00:00
  • Lap #[LAPCOUNT] ([LAPTIME])
    If d denotes a decimal, is d greater than or equal to 0.5?
    (1) When d is rounded to the nearest tenth, the result is 0.5.
    (2) When d is rounded to the nearest integer, the result is 1.



    Last edited by vaibhav101 on Thu Sep 21, 2017 1:00 am; edited 1 time in total

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    Post Thu Sep 21, 2017 12:20 am
    vaibhav101 wrote:
    If d denotes a decimal, is d greater than or equal to 0.5?

    (1) When d is rounded to the nearest tenth, the result is 0.5.
    (2) When d is rounded to the nearest integer, the result is 1.[/img][/list]
    Statement 1: When d is rounded to the nearest tenth, the result is 0.5.

    d can be anything between 0.45 to 0.54. So, the answer cannot be unique yes or no. Insufficient.

    Statement 2: When d is rounded to the nearest integer, the result is 1.

    d must be 1 the number between 0.5 to 0.9; so in any case, d ≥ 0.5. Sufficient.

    The correct answer: B

    Hope this helps!

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    Thanked by: vaibhav101
    Post Mon Sep 25, 2017 3:34 pm
    vaibhav101 wrote:
    If d denotes a decimal, is d greater than or equal to 0.5?
    (1) When d is rounded to the nearest tenth, the result is 0.5.
    (2) When d is rounded to the nearest integer, the result is 1.
    We are given that d is a decimal, and we need to determine whether d is greater than or equal to 0.5.

    Statement One Alone:

    When d is rounded to the nearest tenth, the result is 0.5.

    Using the information in statement one, we can get a multitude of values for d.

    For example, d can be 0.51, and 0.51 is greater than or equal to 0.5.

    In another case, d can be 0.49, but 0.49 is not greater than or equal to 0.5.

    Statement one is not sufficient to answer the question. We can eliminate answer choices A and D.

    Statement Two Alone:

    When d is rounded to the nearest integer, the result is 1.

    In order for d to be rounded to 1 (when rounded to the nearest integer), the value of d must be at least 0.5. Statement two is sufficient to answer the question.

    Answer: B

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