exam Maths Puzzle Numerical Ability

Could someone help me on this problem?

I need to evaluate the following problem.

4- (-3) + 1/1-1 divided by (-2)

Thanks,
Lyn

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exam Other Question

Sheri drove southeast from Albuquerque to Roswell and then south to Carlsbad. She averaged 75 mph along the route from Alburquerque to Roswell and averaged 70 mph from Roswell to C Find three consecutive odd integers such that the sum of the first and third integers is twice the second integer.