WAEC - Mathematics (1999 - No. 31)
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.
\(\frac{m}{2}-3\le 10\)
\(\frac{m}{2}-3\ge 10\)
\(\frac{m-3}{2}\ge10\)
\(\frac{m-3}{2}\le10\)
Spiegazione
Total number of mangoes = m
Amina ate 3 mangoes \(\implies\) Remainder = m - 3
Shared equally with Uche \(\implies \frac{m - 3}{2}\)
\(\frac{m - 3}{2} \geq 10\)