Answer:
83.33 percent
Explanation:
In order to solve this problem, we have to use the Amhadl's law.
We define x as the percentage of floating point instruction.
The speedup is 4, therefore we will have 100/4 cycles if the original program is executed in 100 cycles.
100/4 = 25 cycles
So we continue solving this problem as
100/4 = x/10 + 100-x
25 = x/10+100-x
When we solve this out
x = 83.33 percent
Check attachment for the full calculation