waec model questions vol1 2023 mathematics
Objective • Question 1
Question 1
WAEC_MODEL_QUESTIONS_VOL1
•
2023
A bag contains red, blue and green balls. The probability of drawing a blue ball on the first draw is 0.4. The probability of drawing a red ball is twice that of drawing a green ball. If two balls are drawn without replacement, the probability that one is red and the other is green (in any order) is 0.2. How many red balls are in the bag?
Answer Options
A.
1
Correct Answer
B.
2
C.
3
D.
4
Correct Answer
B
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