Answer:
33 students
Step-by-step explanation:
nr of boys-b
nr of girls-g
b/g=4/7
*7 *7
7b/g=4
*g *g
7b=4g
we know b+g=24.....40
*4 *4
4b+4g=between 96(24*4) and 160(40*4)
but 4g=7b
4b+7b= 96.......160
11b=96.....160
but multiple of 11 could be 99,110,121, 132, 143, 154
then b could be 9,10,11,12,13 or 14
if b=12
7b=4g so 7*12=4*g then g=7*12/4=84/4=21
then 12+21=33 students
