To the cinema 2

On Tuesday, 20 more visitors came to the cinema than on Monday. On Wednesday, half as many visitors came as on Tuesday. There were a total of 175 visitors to the cinema during these three days. How many were there each day?

Final Answer:

a =  58
b =  78
c =  39

Step-by-step explanation:

$$\begin{gathered} b=20+a \\ c=b/2 \\ a+b+c=175 \\ a+(20+a)+b/2=175 \\ a+(20+a)+(20+a)/2=175 \\ 5a=290 \\ a=\frac{290}{5}=58 \\ a=58 \end{gathered}$$

$b=20+a=20+58=78$

$c=b/2=78/2=39$

Try another example