Question

I want to know the work of this, like the process. Please

Answer 1

In this question, you know that the machine packs $\frac{2}{3}$ of a box every $\frac{1}{2}$ of a minute. Since it is constant, you simply have to double the half a minute to a full minute and then also double the rate to get $\frac{4}{3}$ boxes packed per minute. And $\frac{4}{3}$ is equal to $1\frac{1}{3}$