A works 5.4 times as fast as B, and A takes 22 days less than B to complete the job when each works alone. Calculate the number of days taken to complete the same job if A and B work together.
\(
4\left(\frac{1}{4}\right)
\)
\(
4\left(\frac{3}{16}\right)
\)
\(
4\left(\frac{7}{32}\right)
\)
\(
4\left(\frac{5}{32}\right)
\)
What is the value of if \(\left( \frac{1}{a} - \frac{1}{b} - \frac{1}{c} \right)\) \(\frac{2a - 5}{a} - \frac{4b - 5}{b} + \frac{6c + 5}{c} = 0\)
\(
\frac{4}{5}
\)
\(
-\frac{8}{5}
\)
\(
\frac{2}{5}
\)
\(
-\frac{12}{5}
\)
The following bar diagram shows the number of students who opted for different subjects in the year 2020 and 2021.
Out of all 5 subjects, what percentage (rounded up to two decimals) of students opted for Biology in 2021?
If \(x - \frac{1}{x} = 2\sqrt{2}\), what is the value of \(\left( x^6 + \frac{1}{x^6} \right)\)