If - 7 ≤ x ≤ 7 and 0 ≤ y ≤ 12, what is the greatest possible value of y-x?

1. If - 7 ≤ x ≤ 7 and 0 ≤ y ≤ 12, what is the greatest possible value of y-x?

[BKB Senior Officer-2012 : 2012]

1. -19

2. 5

3. 7

4. 19

Answer

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