WAEC Past Questions and Answers - Page 2969

14,841.

Factorize: x + y - ax = ay

A.

(x - y)(1 - a)

B.

(x + y)(1 + a)

C.

(x + y)(1 - a)

D.

(x - y)(1 + a)

Correct answer is C

x + y - ax = ay

= (x + y) -a(x + y) = (x + y)(1 - a)

14,842.

Simplify 0.000215 x 0.000028 and express your answer in standard form

A.

6.03 x 109

B.

6.02 x 109

C.

6.03 x 10-9

D.

6.02 x 10-9

Correct answer is D

0.000215215 x 0.000028

= 215 x 10-4 x 28 x 10-4

= 215 x 28 x 10-6-6

= 6020 x 10-12

= 6.020 x 103 x 10-12

= 6.02 x 103 - 12

= 6.02 x 10-9

14,843.

From the diagram which of the following statements are correct? i. XQ is a radius of a circle centre Q. ii. /XQ/ = /QY/. iii. /QX/ = /XY/

A.

i only

B.

i and ii only

C.

ii and iii only

D.

i, ii and iii

Correct answer is B

No explanation has been provided for this answer.

14,844.

The conferment of citizenship on a distinguished personality of another country is called

A.

citizenship by birth

B.

honorary citizenship

C.

adoption

D.

citizenship by registration

Correct answer is B

Honorary citizenship is a status bestowed by a country on a foreign or native individual whom it considers to be especially admirable or otherwise worthy of the distinction.

14,845.

The pie chart shows the distribution of 4320 students who graduated from four departments in a university. If a student is picked at random from the four departments, what id the probability that he is not from the education department?

A.

\(\frac{3}{10}\)

B.

\(\frac{2}{9}\)

C.

\(\frac{5}{18}\)

D.

\(\frac{7}{10}\)

Correct answer is D

\(\frac{\text{education}}{\text{graduates}} = \frac{108}{360} \times 4320\)

= 1296

Pr(Education) = \(\frac{1296}{4320} = \frac{1}{10}\)

pr(not education) = 1 - \(\frac{3}{10}\)

= \(\frac{10 - 3}{10}\)

= \(\frac{7}{10}\)