Jamb 1979 Mathematics Questions
Question 41:
12 men complete a job in 9 days. How many men working t the same rate would be required to complete the job in 6 days?
View Answer & ExplanationQuestion 42:
For the set of numbers 2, 3, 5, 6, 7, 7, 8
- A The median is greater than the mode
- B The mean is greater than the mode
- C The mean is greater than the median
- D The median is equal to the mean
- E The mean is less than the median
Question 43:
Simplify \(\frac{1 - x^2}{x - x^2}\), where x \(\neq\) 0
- A \(\frac{1}{x}\)
- B \(\frac{1 - x}{x}\)
- C \(\frac{1 + x}{x}\)
- D \(\frac{1}{x - 1}\)
- E \(\frac{-x - 1}{1}\)
Question 44:
A cylinder of height h and radius r is open at one end. Its surface area is
- A 2\(\pi\)rh
- B \(\pi\)r<sup style='font-size: smaller;'>2</sup>h
- C 2\(\pi\)rh + \(\pi\)r<sup style='font-size: smaller;'>2</sup>
- D 2\(\pi\)rh + 2\(\pi\)r<sup style='font-size: smaller;'>2</sup>
Question 45:
An arc of circle of radius 2cm subtends an angle of 60o at the centre. Find the area of the sector
- A \(\frac{2 \pi}{3}\)cm<sup style='font-size: smaller;'>2</sup>
- B \(\frac{\pi}{2}\)cm<sup style='font-size: smaller;'>2</sup>
- C \(\frac{\pi}{3}\)cm<sup style='font-size: smaller;'>2</sup>
- D \(\pi\)cm<sup style='font-size: smaller;'>2</sup>