I Need the CORRECT answer for these two problems. For FIFO page the answer isn't 83% and Optimal page the answer isn't 55%. I need the correct answer. PLEASE SOMONE HELP ME.

Question 9 7.14 pts Calculate the page fault rate on a memory with 4 frames for the FIFO page replacement algorithm for the following sequence of page references: 1,2,3,4,5,1,3,7,1,4,5,2,3,7,6,2,5, 1. Enter only the percent number. For instance, if the result is 55.55%, enter only 5555. Question 11 7.14 pts Calculate the page fault rate on a memory with 4 page frames for the Optimal page replacement algorithm for the following sequence of page references: 1.2.3.4.5.1.3.7.1.4.5.2.3.7.62.5.1. Enter only the percent number. For instance, if the result is 55.55%, enter only 5555