In Mark's class, there are 15 students with brown hair, 3 students with blonde hair, and 5 students with black hair. What is the ratio of students with brown hair to students with black hair?

Answer: 3 : 1Step-by-step explanation:We know that the ratio of A to B is given by :-[tex]\dfrac{A}{B}[/tex] or A : B .Given : Number of students having brown hair = 15Number of students having black hair = 5Then , the ratio of students with brown hair to students with black hair will be  :-[tex]=\dfrac{\text{No. of students with brown hair}}{\text{No. of students with black hair}}\\\\=\dfrac{15}{5}=\dfrac{3}{1}[/tex]Hence, the ratio of students with brown hair to students with black hair = 3 : 1.