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For every X, the action [X] is defined: [X] is the greatest integer less than or equal to X. What is the value of [6.5] x [2/3] + [2] x 7.2 + [8.4] – 6.6?
  • a)
    12.6
  • b)
    14.4
  • c)
    15.8
  • d)
    16.2
  • e)
    16.4
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
For every X, the action [X] is defined: [X] is thegreatest integer les...
[6.5] x [2/3] + [2] x 7.2 + [8.4] – 6.6 = 6 x 0 + 2 x 7.2 + 8 - 6.6 = 15.8
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Most Upvoted Answer
For every X, the action [X] is defined: [X] is thegreatest integer les...
The value of [6.5] is 6, since it is the greatest integer less than or equal to 6.5.
The value of [2/3] is 0, since there is no integer less than or equal to 2/3.
The value of [2] is 2, since it is the greatest integer less than or equal to 2.
Therefore, [6.5] x [2/3] [2] x 7.2 [8.4] = 6 x 0 2 x 7.2 8 x 7.2.
6 x 0 = 0,
2 x 7.2 = 14.4,
8 x 7.2 = 57.6.
So, the final result is 0 + 14.4 + 57.6 = 72.
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For every X, the action [X] is defined: [X] is thegreatest integer less than or equal to X. Whatis the value of [6.5] x [2/3] + [2] x 7.2 + [8.4] –6.6?a)12.6b)14.4c)15.8d)16.2e)16.4Correct answer is option 'C'. Can you explain this answer?
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