Four different positions of the same dice are shown. Select the number that will be on the face opposite to the one having 5.
Which of the following is the greatest number?
\( \frac{15}{12} \)
\( \frac{25}{12} \)
\( \frac{13}{14} \)
\( \frac{7}{18} \)
If the numerator of a fraction is increased by 80% and the denominator of the fraction is increased by 120%, then the resultant fraction is \( \frac{7}{22} \). What is the original fraction?
\( \frac{7}{18} \)
\( \frac{7}{17} \)
\( \frac{5}{17} \)
\( \frac{5}{18} \)
The work done by a woman in 6 h is equal to the work done by a man in 4 h and by a boy in 8 h. Working 8 h per day, if 8 women can complete the work in 10 days, then in how many days can 10 women, 10 men and 10 boys together finish the same work working 8 h per day?
2 \( \frac{1}{13} \)
2 \( \frac{6}{13} \)
6 \( \frac{2}{13} \)
1 \( \frac{1}{13} \)