WAEC Past Questions and Answers - Page 2308

11,536.

The pie chart represents the distribution of fruits on display in the shop if there are 60 apples on display how many oranges are there? 

A.

80

B.

270

C.

120

D.

90

Correct answer is D

Total angles = 360°

100 + 60 + 80 + M = 360

M = 360 - 240 = 120

Orange (M) = 120° and F ( fruits in total)

For Apples:

\(\frac{80}{360} \times F\) = 60

F = \(\frac{60 \times 360}{80}\)

F = 270 fruits in total

For Orange

= \(\frac{120}{360} \times 270\) 

= 90 oranges

11,538.

The distance d between two villages east more than 18 KM but not more than 23KM.

which of these inequalities represents the statements?

A.

18 ≤ d ≤ 23

B.

18 < d < 23

C.

18 ≤ d < 23

D.

18 < d ≤ 23

Correct answer is D

distance d more than 18 KM = d > 18 0r 18 < d distance d but not more than 23 KM = d ≤ 23 Mathematically; 18 < d ≤ 23

11,539.

500 tickets were sold for a concert tickets for adults and children were sold at $4.50 and $3.00  respectively if the total receipts for the concerts was $1987.50 how many tickets for adults were sold?

A.

325

B.

235

C.

175

D.

400

Correct answer is A

A for Adults

C for children 

a + c = 500

c = 500 - a

4.5a + 3c = 1987.50

where c = 500 - a

4.5a + 3(500 - a) = 1987.50

4.5a - 3a = 1987.50 - 1500

1.5a = 487.5

a = 487.5 / 1.5

a = 325 tickets

c = 500 - a

c = 500 - 325

c = 175 tickets

 

Check:

from 4.5a + 3c

4.5 (325) = 1,462.5

+

3(175) = 525

11,540.

\(\overline{XY}\) is a line segments with the coordinates X (- 8,- 12) and Y(p,q). if the midpoint of \(\overline{XY}\)  is (-4,-2) find the coordinates of Y.

A.

(-6,-2)

B.

(0,8)

C.

(4,10)

D.

(0,4)

Correct answer is B

The formula for midpoint = \(\frac{x_1 + x_2}{2}\), \(\frac{y_1 + y_2}{2}\)

(-4,-2) = (x,y)

x = \(\frac{x_1 + x_2}{2}\)

-4 = \(\frac{-8 + p}{2}\)

-4 * 2 = -8 + p

-8 + 8 = p

: p = 0

y = \(\frac{y_1 + y_2}{2}\)

-2 = \(\frac{-12 + q}{2}\)

-2 * 2 = -12 + q

-4 + 12 = q

: q = 8