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Question
(−7) + (−9) + 12 + (−16) = ?
Options
-20
20
-12
none of these
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Solution
-20
(−7) + (−9) + 12 + (−16)
= −7 − 9 + 12 −16
= −20
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A water tank has steps inside it. A monkey is sitting on the topmost step (i.e., the first step). The water level is at the ninth step.
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