Answer:
Explanation:
Let the cost of examination is = $x
Let the cost of workshop hours is = $y
and Let the cost of lecture hours = $z
Now as it has been given that examination hours cost twice as much as workshops hours then
x = 2y -----(1)
Workshop hours cost twice as much as the lecture cost.
y = 2z ----(2)
Then we replace the value of y =
from equation (1) to (2)
= 2z
x = 4z
Therefore, lecture cost is 4 times more than the cost of examination.