Write the ratios 5 : 3, 7 : 5 and 6 : 4 in descending order.
\( \frac{5}{3} \) > \( \frac{6}{4} \)> \( \frac{7}{5} \)
\( \frac{5}{3} \) > \( \frac{7}{5} \) >\( \frac{6}{4} \)
\( \frac{7}{5} \) > \( \frac{6}{4} \) > \( \frac{5}{3} \)
\( \frac{6}{4} \) >\( \frac{7}{5} \) > \( \frac{5}{3} \)
Pipe A can fill a tank in 80 min and pipe B can fill the tank in 40 min. If A and B are opened together, then in how many minutes will the tank be filled?
If \( \frac{1}{3} \) A = \( \frac{1}{4} \) B = \( \frac{1}{5} \) C, then A : B : C = ?
4 : 3 : 5
\( \frac{1}{3} \) : \( \frac{1}{4} \) : \( \frac{1}{5} \)
3 : 4 : 5
5 : 4 : 3