Answer: [tex]\frac{7}{12}[/tex]
Step-by-step explanation:
Let the total time of band practice be 't'.
Then, Practice spent by band on uniforms =[tex]\frac{1}{6}t[/tex]
Practice spent by band on marching =[tex]\frac{1}{4}t[/tex]
Then the remaining time=[tex]t-\frac{1}{6}t-\frac{1}{4}t[/tex]
⇒ The remaining time =[tex]\frac{12t-2t-3t}{12}[/tex]
⇒ The remaining time =[tex]\frac{7t}{12}[/tex]
Thus, [tex]\frac{7}{12}[/tex] of time was spent on playing music.
