Post-UTME Physics 2011 Objective — Question 9

Question 9 of 16 from the Post-UTME Screening (Post-UTME) Physics 2011 Objective paper, with the correct answer and a full explanation.

Which of the following is a factor of rs + tr - pt - ps?

A. (p-s)
B. (s-p)
C. (r-p)Correct
D. (r+p)

Explanation

rs+tr-pt-ps = r(s+t)-p(t+s) = (s+t)(r-p). (Note: this question is a near-duplicate of one found in the FUTO 2013/2014 Type D session in this same PDF set; the same independently-worked answer is used here.)

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 Physics 2011 Objective More Physics past papers