Mathematics Past Questions

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3111

Twice a number, x, is added to 5, the result is at least 11. What is the range of values of x?

A. x > 3
B. x ≥ 3
C. x ≤ 3
D. x < 3
E. x ≤ -3

View Answer & Discuss (4) NECO 2002

3112

Simplify [1 ÷ (x + 1)] - [2 ÷ (x - 1)] + [3 ÷ (x² - 1)]

A. - 3x ÷ (x² - 1)
B. - x ÷ (x² -1)
C. x ÷ (x² - 1)
D. (x + 1) ÷ (x² - 1)
E. (x + 4) ÷ (x² - 1)

View Answer & Discuss (1) NECO 2002

3113

The mean heights of 3 groups of students consisting of 20, 16 and 14 students are 1.67m, 1.50m and 1.40m Respectively. What is the mean height of all the students?

A. 1.52m
B. 1.53m
C. 1.54
D. 1.55m
E. 1.56m

View Answer & Discuss (3) NECO 2002

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3114

The mean and the range of the set of numbers: 1.20, 1.00, 0.90, 1.40, 0.80, 0.80, 1.20 and 1.10 are p and q respectively. What is the value of p ÷ q?

A. 1.11
B. 65
C. 1.85
D. 2.45
E. 3.85

View Answer & Discuss (4) NECO 2002

3115

A girl on top of a storey building 36m high dropped a N10.00 note on the ground below. If the angle of depression of the N10.00 note is 35°, how far is the money from the girl?

A. 20.64m
B. 29.48m
C. 44.49m
D. 49.55m
E. 62.76m

View Answer & Discuss (2) NECO 2002

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