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WAEC Mathematics Past Questions & Answers - Page 314

1,566.

The table shows that the amount of money (in naira)collected through voluntary donations in a secondary school. What is the mode?

A.

N3

B.

N6

C.

N9

D.

N12

E.

N15

View answer & explanation

Correct answer is D

Mode = 12

1,567.

The annual salary of Mr. Johnson Mohammed for 1989 was N12,000.00. He spent this on agriculture projects, education of his children, food items, saving , maintenance and miscellaneous items as shown in the pie chart

How much money did he invest in agriculture?

A.

N1,200.00

B.

N1,440.00

C.

N2,000.00

D.

N2,910.00

E.

N4,000.00

View answer & explanation

Correct answer is E

Agric project = $\frac{120}{360} \times N12,000.00$

= $N4,000.00$

1,568.

The bearing of a point X from a point Y is 074°. What is the bearing of Y from X?

A.

106^o

B.

146^o

C.

164^o

D.

254^o

E.

286^o

View answer & explanation

Correct answer is D

< YXS = 74° (alternate angles, N $_1$ S $_1$ // N $_2$ S $_2$ )

N $_2$ E $_2$ S $_2$ = 180°

$\therefore$ Bearing of Y from X = 180° + 74°

= 254°

1,569.

From the top of a building 10m high, the angle of depression of a stone lying on the horizontal ground is 69^o. Calculate ,correct to one decimal place, the distance of the stone from the foot of the building

A.

3.6m

B.

3.8m

C.

6.0m

D.

9.3m

E.

26.1m

View answer & explanation

Correct answer is B

No explanation has been provided for this answer.

1,570.

If the shadow of a pole 7m high is 1/2 its length what is the angle of elevation of the sun, correct to the nearest degree?

A.

90^o

B.

63^o

C.

60^o

D.

26^o

E.

0^o

View answer & explanation

Correct answer is B

tan θ - 7/3.5 = 2
tan θ= 2.0000
θ = 63^o

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