Question

Mrs Nelson has a total of 150 students in her classes . of these students 30% eat during the first lunch period 20% 8 during the second lunch period and the rest eat during the third lunch period and the rest eat during the third lunch period how many of her students eat during each lunch.

Answer 1

we have

total students-------> 150

First period

Eat 30%

30%=30/100=0.30

number of students First period is equal to

150*(0.30)=45 students

Second period

Eat 20%

20%=20/100=0.20

number of students 2 period is

150*(0.20)=30 students

Thsrd period

Eat=100%-(30%+20%)=50%

number of students

150*(0.50)=75 students

therefore

answer is

I period ----> 45 students

II period ----> 30 students

III period ----> 75 students