Question

a test is worth 50 points.multiple choice questions are worth 1 point, and short answer questions are 3 points. If the test has 20 questions, how many multiple choise questions are there?

Answer 1

Is there any options.

Answer 2

X = # of MC, y = # of SA

x + y = 20
x + 3y = 50

Solve the system of equations and you'll have y = 15, x = 5

So 5 MC questions