book Maths Puzzle Numerical Ability

The table gives the outside temperature in degrees Fahrenheit on a winter day in Death Valley, California.

Time(A.M.) 7:00 8:00 9:00 10:00 11:00
Temp. 78 82

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book Other Question

I am having trouble with this question. I think I might know the answer but I am not sure, can you help me? Car thieves steal one automobile out of 400 of a certain type every yea -4-11
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3-(-2)