Question

Please Explain Step by Steps​

Answer 1

Answer: 1000, 350 and 375

Step-by-step explanation:

let total number of students = $x$

bus students= $\frac{7}{20}x$

car students = $\frac{3}{8}x$

walk students = $\frac{3}{20}x$

bicycle students = $\frac{3}{8} x$

now it is given that walk students=150

so

  $\frac{3}{20}x=150\\ \\\frac{x}{20} =\frac{150}{3} \\\\\frac{x}{20} =50\\\\x=50*20\\\\x=1000$

total number of students  $=x =1000$

now,

bus students  = $\frac{7}{20}x$ $=\frac{7}{20} *1000 =\frac{7}{2} *100=7*50 = 350$

bicycle students = $\frac{3}{8} x$ $=\frac{3}{8}*1000 = \frac{3000}{8} = 375$