Step 1
Write a number of sodas sold and hot dogs sold.
let the number of hot dogs sold = x
let the number of sodas sold = 3x
Step 2
Write an equation for the total numbers of both sodas and hot dogs sold.
x + 3x = 200
4 x = 200
x = 200/4
x = 50
Therefore,
number pf sodas or stockholders = 3 x 50 = 150
number of hot dogs = x = 50