Problema Solution
There is only one freshman in the cast of a high school musical. There are 6 sophomores and 11 juniors. One third of the cast are seniors. How many seniors are in the musical?
Answer provided by our tutors
1+6+11=18
let x=entire cast
18=(2/3)x
divide 2/3 into both sides. x=3/2*18=27
27-18=9 seniors in the musical.
Check:
9/27=1/3