1.

\(\frac{{180 \times 15 - 12 \times 20}}{{140 \times 8 + 2 \times 55\;}} = \;?\)

A. 4
B. 2
C. \(\frac{1}{7}\)
D. \(\frac{4}{5}\)
Answer» C. \(\frac{1}{7}\)


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