Jamb Mathematics Past Questions For Year 2020
Question 1
Evaluate (212)\(_3\) - (121)\(_3\) + (222)\(_3\)
- A. (313)\(_3\)
- B. (1000)\(_3\)
- C. (1020)\(_3\)
- D. (1222)\(_3\)
Question 2
Factorise (4a + 3) \(^2\) - (3a - 2)\(^2\)
- A. (a + 1)(a + 5)
- B. (a - 5)(7a - 1)
- C. (a + 5)(7a + 1)
- D. a(7a + 1)
Question 3
Find all medians of the numbers 89, 141, 130, 161, 120, 131, 131, 100, 108 and 119
- A. 131
- B. 125
- C. 123
- D. 120
Question 4
Find all real number x which satisfy the inequality \(\frac{1}{3}\) (x + 1) - 1 > \(\frac{1}{5}\)(x + 4)
- A. x<11
- B. x<-1
- C. x > 6
- D. x > 11
Question 5
Reach each number to two significant figures and then evaluate \(\frac{0.02174 \times 1.2047}{0.023789}\)
- A. 0
- B. 0.9
- C. 1.1
- D. 1.2
