If 3 x 2 = -26, 6 x 4 = -40 and 5 x 7 = -22, then 4 x 2 =?

Question

If 3 x 2 = -26,
6 x 4 = -40
and 5 x 7 = -22,
then 4 x 2 =?

A. -30

B. -34

C. -28

D. -24

Answer: B. -34

Solution:

3 × 2 = 6 – 32 = -26

6 x 4 = 24 – 64 = -40

5 x 7 = 35 – 57 = -22

so

4 x 2 = 8 – 42 = -34

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