Question

When 64 is increased in the ratio 9 : 8 it becomes what?

Answer 1

Let the increased quantity be x.

Thus, we have:

`\begin{gathered} (x)/(64)=(9)/(8) \\ \text{cross}-\text{multiply} \\ 8x=576 \\ x=(576)/(8) \\ x=72 \end{gathered}`

Hence, the increased quantity is 72