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Jamb Mathematics Past QuestionsJamb Past Questions and Answers on Rate of changeQuestion 1:The mean of the numbers 1.2, 1.0, 0.9, 1.4, 0.8, 0.8, 1.2 and 1.1 is A. 1.5 B. 0.8 C. 1.0 D. 1.02 E. 1.05 Question 2:Ice forms on a refrigerator ice-box at the rate of (4 - 06t)g per minute after t minutes. If initially there are 2g of ice in the box, find the mass of ice formed in 5 minutes A. 19.5 B. 17.0 C. 14.5 D. 12.5 Question 3:a student blows a balloon and its volume increases at a rate of \(\pi\)(20 - t2)cm3S-1 after t seconds. If the initial volume is 0 cm3, find the volume of the balloon after 2 seconds A. 37.00\(\pi\) B. 37.33\(\pi\) C. 40.00\(\pi\) D. 42.67\(\pi\) Question 4:If the volume of a hemisphere is increasing at a steady rate of 18π m\(^{3}\) s\(^{-1}\), at what rate is its radius changing when its is 6m? A. 2.50m/s B. 2.00 m/s C. 0.25 m/s D. 0.20 m/s Question 5:Find the rate of change of the volume, V of a sphere with respect to its radius, r when r = 1. A. 12π B. 4π C. 24π D. 8π |
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