NECO Mathematics Past Questions & CBT Practice

Construct a quadratic equation whose roots are -$\frac{3}{2}$ and 7

1. A.3x2 + 11x + 21 = 0
2. B.2x2 + 11x + 21 = 0
3. C.2x2 - 11x – 21 = 0✓ Correct
4. D.3x2 - 11x - 21 = 0
5. E.x2 - 11x – 21 = 0

Find x if (x - 2)2 = 1$\frac{7}{9}$

1. A.$\frac{2}{3}$ or $\frac{2}{7}$
2. B.3$\frac{1}{3}$ or $\frac{2}{3}$✓ Correct
3. C.3$\frac{7}{9}$ or $\frac{2}{7}$
4. D.3$\frac{1}{3}$ or $\frac{7}{9}$
5. E.$\frac{3}{7}$ or $\frac{2}{9}$

If A(I,2,3,...,10) ; B = (-5,-4,.....,-1) ; C = (-1, 0, 1, 2,....5) List all the elements in (B ∪ C) ∩ A

1. A.(-1,2,...5)
2. B.(-1,1,....5)
3. C.(1,2,..5)✓ Correct
4. D.(2,3,...10)
5. E.(1,2,...10)

A man is 40m from the foot of a cliff of height 23m. Calculate the angle of elevation of the top of the cliff from the man

1. A.50° 54′
2. B.35° 06′
3. C.30° 00′
4. D.290 90′
5. E.29° 54′✓ Correct

T varies directly as D and inversely as A. Given that T = 6, D = 3, and A = 2, find A when T = 3 and D = 6.

1. A.4
2. B.6
3. C.8✓ Correct
4. D.12
5. E.24

In Δ ABC, A = 60°, C = 90° and AC = 12m. Find the Length of the hypotenuse.

1. A.24m✓ Correct
2. B.14m
3. C.12m
4. D.7m
5. E.6m