This is more of Aptitude question.

Here data are given in comparison with one another it means we should try to equate both processor values by using some equation. If we think closely there is nothing equal in both except no. of instructions to be executed. Then how can we find no. of instructions (given total time to compute, CPI, Cycle time)

**$\frac{Total time}{CPI * Cycle time} = No. of Instructions$
$\frac{Total time.1}{CPI.1 * Cycle time.1} = \frac{Total time.2}{CPI.2 * Cycle time.2}$**