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Amina had m mangoes. She ate 3 and shared the remainder equally with her brother...

Mathematics
WAEC 1999

Amina had m mangoes. She ate 3 and shared the remainder equally with her brother Uche. Each had at least 10. Which of the following inequalities represents the statements above.

  • A. \(\frac{m}{2}-3\le 10\)
  • B. \(\frac{m}{2}-3\ge 10\)
  • C. \(\frac{m-3}{2}\ge10\)
  • D. \(\frac{m-3}{2}\le10\)
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Correct Answer: Option C
Explanation

Total number of mangoes = m

Amina ate 3 mangoes \(\implies\) Remainder = m - 3

Shared equally with Uche \(\implies \frac{m - 3}{2}\)

\(\frac{m - 3}{2} \geq 10\)


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