waec model questions vol1 2023 mathematics
Objective • Question 19
Question 19
WAEC_MODEL_QUESTIONS_VOL1
•
2023
A closed rectangular box has length twice its width and a total surface area of 48 cm². Determine the dimensions that give the maximum possible volume and state that maximum volume.
Answer Options
A.
Maximum volume = 48\/3 cm³, attained when width = 2 cm, length = 4 cm, height = 4 cm
Correct Answer
B.
Maximum volume = 64/3 cm³, attained when width = 2 cm, length = 4 cm, height = 8/3 cm
C.
Maximum volume = 64\/3 cm³, attained when width = 3 cm, length = 6 cm, height = 8\/3 cm
D.
Maximum volume = 80\/3 cm³, attained when width = 1 cm, length = 2 cm, height = 8\/3 cm
Correct Answer
B
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.
Unlock Full Access
Available for Android & Windows