waec model questions vol1 2023 mathematics
Objective • Question 23
Question 23
WAEC_MODEL_QUESTIONS_VOL1
•
2023
The first three terms of a geometric progression are 3, x and 12. The sum of these three terms equals the sum of the first three terms of an arithmetic progression whose first term is 2 and common difference d. Find the values of x and d.
Answer Options
A.
9 and 2
Correct Answer
B.
6 and 5
C.
4 and 7
D.
8 and 3
Correct Answer
B
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