Answer: 155 fifth grader students.
Step-by-step explanation:
Given that 80% = 124 fifth grader students, the difference between 80% and total number of fifth grader students is 100% - 80%, which is 20%.
Therefore, if 80/100 = 124
(100/100- 80/100) = x
We cross multiply:
0.8x = 0.2 x 124
0.8x = 24.8
Divide both sides by 0.8
x = 24.8/0.8
x = 31
Total number of fifth grader students is 124 + 31 = 155
