1.

If ‘-’ and ‘×’ signs as well as ‘7’ and ‘3’ are interchanged, then which of the one following is correct?A. 20 × 1 – 7 = 3B. 1 × 20 – 7 = 20C. 3 – 7 × 1 = 20D. 20 – 3 × 1 = 7

A. A
B. B
C. D
D. C
Answer» E.


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