If 3p = 4q and 9p = 8q - 12, find the value of pq.
MATHEMATICS
WAEC 2019
If 3p = 4q and 9p = 8q - 12, find the value of pq.
- A. 12
- B. 7
- C. -7
- D. -12
Correct Answer: A. 12
Explanation
9p = 8q - 12
9p = 2(4q) - 12
9p = 2(3q) - 12
9p = 6p - 12
3p = -12
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *