JAMB Mathematics 2007 Objective — Question 29
Question 29 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2007 Objective paper, with the correct answer and a full explanation.
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The volume of a hemispheric bowl is 718 2/3 cm^3. Find its radius. [pi=22/7]
- A. 3.8cm
- B. 4.0cm
- C. 5.6cm
- D. 7.0cmCorrect
Explanation
Volume of hemisphere = (2/3)pi.r^3. Solving (2/3)(22/7)r^3 = 718(2/3) gives r^3=343, so r=7cm.
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