There are between 24 and 40 students in a class the ratio of boys to girls is 4:7 how many students in the class
Accepted Solution
A:
Answer:33 studentsStep-by-step explanation:nr of boys-bnr of girls-gb/g=4/7 *7 *77b/g=4 *g *g7b=4gwe know b+g=24.....40 *4 *4 4b+4g=between 96(24*4) and 160(40*4)but 4g=7b4b+7b= 96.......16011b=96.....160but multiple of 11 could be 99,110,121, 132, 143, 154then b could be 9,10,11,12,13 or 14if b=12 7b=4g so 7*12=4*g then g=7*12/4=84/4=21then 12+21=33 students