JAMB Mathematics 2018 Objective — Question 5
Question 5 of 39 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2018 Objective paper, with the correct answer and a full explanation.
Advertisement
If p, q and r are in the ratio 6:4:5, find the value of (3p−q)/(4q+r)
- A. 2/3Correct
- B. 3/5
- C. 5/3
- D. 4/3
Explanation
Let p=6k, q=4k, r=5k. (3×6k−4k)/(4×4k+5k) = (18k−4k)/(16k+5k) = 14k/21k = 2/3.
Advertisement
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.