WAEC Past Questions and Answers - Page 3963

19,811.

In the diagram, PQ||SR. Find the value of Z

A.

30o

B.

40o

C.

45o

D.

90o

E.

120o

Correct answer is D

Given PQ//SR
x = 45º

y = 45º

z = ?

Sum of angles in a triangle  = 180º

(x + y + z)º = 180º

(45 + 45 + z)º = 180º

90º + zº = 180º

z = (180 - 90)º

z = 90º

19,812.

Which of the following organisms has homodont dentition?

A.

Rabbit

B.

Man

C.

Sheep

D.

Cat

E.

Lizard

Correct answer is E

No explanation has been provided for this answer.

19,813.

The mode of nutrition which describes feeding habit in animals is

A.

autotrophic

B.

holozoic

C.

holophytic

D.

saprophytic

E.

photosynthetic

Correct answer is B

No explanation has been provided for this answer.

19,814.

In ∆PQR. ∠PQR is a right angle. |QR| = 2cm and ∠PRQ = 60o. Find |PR|

A.

4√3cm

B.

4cm

C.

2√3cm

D.

\(\frac{4}{3}cm\)

E.

1cm

Correct answer is B

No explanation has been provided for this answer.

19,815.

A box contain 2 white and 3 blue identical balls. If two balls are picked at random, one after the other, without replacement, what is the probability of picking two balls of different colours?

A.

\(\frac{5}{25}\)

B.

\(\frac{7}{20}\)

C.

\(\frac{3}{5}\)

D.

\(\frac{2}{3}\)

E.

\(\frac{5}{6}\)

Correct answer is C

No explanation has been provided for this answer.