Question

ana writes test to upgrade her level. The test has 25 questions for a total score of 150 points. Among the 25 questions, each mulyiple choice questions carries 3 points and the descriptive type questions carries 8 points.How many multiple choice questions and descriptive type questions are there in the test?

Answer 1

Let the marks of multiple choice questions
=3x
And marks of descriptive type question
=8(25-x)
So,
3x + 8(25 - x) = 150
3x + 200 - 8x = 150
3x - 8x = 150 - 200
-5x = - 50
X = - 50/-5
X = 10
So,number of multiple choice questions
=3 x 10
=30
And,number of descriptive type questions
=8(25 - 10)
=8 x 15
=120

Hope it helps...!!!