X does 25% of a work in 20 days. Y joins X and they together finish the remaining work in 15 days. Y alone can do the whole work in __ days.
30 days
25 \( \frac{1}{3} \) days
26 \( \frac{2}{3} \) days
26 \( \frac{1}{3} \) days
The smallest of the fractions among \( \frac{5}{8} \), \( \frac{3}{4} \), \( \frac{13}{16} \), \( \frac{7}{12} \) is __________.
\( \frac{5}{8} \)
\( \frac{3}{4} \)
\( \frac{13}{16} \)
\( \frac{7}{12} \)
If angles M and N measure 60° and 30° respectively, (sinM) × (cotN) = ?
\( \frac{1}{2} \)
\(\frac{\sqrt{3}}{2}\)
\( \frac{3}{2} \)
0