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NECO Mathematics Past Questions & Answers - Page 9

41.

If 2x : ( x + 1) = 3 : 2, what is the value of x?

A.

$\frac{1}{2}$

B.

1

C.

1 $\frac{1}{2}$

D.

3

E.

3 $\frac{1}{2}$

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.

42.

Two fair dice are tossed together once. What is the probability of getting a total of at least 9 from the outcome?

A.

$\frac{1}{9}$

B.

$\frac{1}{6}$

C.

$\frac{5}{18}$

D.

$\frac{1}{3}$

E.

$\frac{13}{18}$

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

43.

The parallel sides of a trapezium are 13cm and 7cm. If the area of the trapezium is 50cm2, find the perpendicular distance between the parallel sides.

A.

5cm

B.

6cm

C.

7cm

D.

10cm

E.

12cm

View answer & explanation

Correct answer is A

No explanation has been provided for this answer.

44.

If 25a² = 5^-1 × 125. Find the value of a?

A.

a = -1

B.

a = 1

C.

a = ±1

D.

a = ±5

E.

a = 25

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

45.

A chord 20cm long subtends an angle of 60° at the circumference of a circle, what is the diameter of the circle the nearest cm?

A.

12cm

B.

20cm

C.

23cm

D.

60cm

E.

80cm

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

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