Amar can complete a work in 15 days, and Prem, in 12 days. Starting with Amar, they work on alternate days. In how many days will the work be completed?
A and B alone can do a piece of work in 4 and 9 days, respectively. In how many days will the work be completed, if they both work on alternate days, starting with B?
If \(
x - \frac{1}{x} = -6,
\) what will be the value of \(
x^5 - \frac{1}{x^5}
\)
Study the following bar chart and answer the question.
Find the percentage increase of sales of XYZ phones from 2019 to 2020? (Rounded up to 2 decimal places)