Post-UTME Mathematics 2017 Objective — Question 22

Question 22 of 50 from the Post-UTME Screening (Post-UTME) Mathematics 2017 Objective paper, with the correct answer and a full explanation.

At the beginning of a class period, half of the students in a class go to the library. Later in the period, half of the remaining students go to the computer lab. If there are 8 students remaining in the class, how many students were originally in the class?

A. 12 students
B. 16 students
C. 24 students
D. 32 students / E. 40 studentsCorrect

Explanation

Working backwards: 8 remaining after half go to lab means 16 before that step; 16 remaining after half go to library means 32 originally.

Sign up free to unlock

Score tracking
Practice history
Saved questions
Progress dashboard
Personalized sessions
Weak-topic breakdown

…and/or go further with premium services and No Ads.

Create free account

More questions from Mathematics 2017 Objective More Mathematics past papers