NECO Past Questions and Answers - Page 149

741.

The angle of elevation of the top (T) of a palm tree from a point (R) on the ground is 30°. The distance from R to the base (B) of the palm tree is 120m. What is the distance between T and R?

A.

60m

B.

60\(\sqrt{3}\)m

C.

80\(\sqrt{3}\)m

D.

120\(\sqrt{3}\)m

E.

240m

Correct answer is C

No explanation has been provided for this answer.

743.

A petrol attendant recorded the number of vehicles that bought petrol from him for -3 hours and recorded 12 cars and 27 buses. What is the probability that the next vehicle will be a bus?

A.

\(\frac{4}{39}\)

B.

\(\frac{4}{13}\)

C.

\(\frac{5}{13}\)

D.

\(\frac{6}{13}\)

E.

\(\frac{9}{13}\)

Correct answer is E

No explanation has been provided for this answer.

744.

If sin 30° = 0.5, what is the cosine of its complement?

A.

-0.866

B.

-0.5

C.

0.0.5

D.

0.866

E.

1

Correct answer is C

No explanation has been provided for this answer.

745.

What is the total surface area of a cuboid whose dimensions are 12cm × 8cm × 3cm?

A.

312cm\(^2\)

B.

96cm\(^2\)

C.

36cm\(^2\)

D.

24cm\(^2\)

E.

12cm\(^2\)

Correct answer is A

No explanation has been provided for this answer.