Students 8305

There are 40 students in the class. One quarter like to draw, one-fifth like to sing, and one half like to practice. How many are there?

Correct answer:

a =  10
b =  8
c =  20

Step-by-step explanation:

n=40 a=41 n=41 40=41 40=440=10
b=51 n=51 40=51 40=540=8
c=21 n=21 40=21 40=240=20

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