Jamb Mathematics Past Questions For Year 1991
Question 1
Simplify 3\(\frac{1}{3}\) - 1\(\frac{1}{4}\) x \(\frac{2}{3}\) + 1\(\frac{2}{5}\)
- A. 2
- B. 3
- C. 4
- D. 5
Question 2
If 2257 is the result of subtracting 4577 from 7056 in base n, find n
- A. 8
- B. 9
- C. 10
- D. 11
Question 3
Find correct to 3 decimal places (\(\frac{1}{0.05}\) + \(\frac{1}{5.005}\)) - (0.05 x 2.05)
- A. 99.998
- B. 98.999
- C. 89.899
- D. 9.998
Question 4
express 62 \(\div\) 3 as a decimal correct to 3 significant figures
- A. 20.6
- B. 20.667
- C. 20.67
- D. 20.7
Question 5
Factory P produces 20,000 bags of cement per day while factory Q produces 15,000 bags per day. If P reduces production by 5% and Q increases production by 5%, determine the effective loss in the number of bags produced per day by the two factories
- A. 250
- B. 750
- C. 1000
- D. 1250
