Mathematics questions and answers

Mathematics Questions and Answers

How good are you with figures and formulas? Find out with these Mathematics past questions and answers. This Test is useful for both job aptitude test candidates and students preparing for JAMB, WAEC, NECO or Post UTME.

291.

The graph of the equations y = 2x + 5 and y = 2x\(^2\) + x - 1 are shown. Use the information above to answer this question.

Find the point of intersection of the two graphs.

A.

(2.0, 9.0) and (-1.5, 2.0)

B.

(2.0, 8.5) and (-1.5, 2.0)

C.

(2.0, 8.0) and (-1.5, 2.5)

D.

(2.0, 7.5) and (-1.5, 2.5)

Correct answer is A

The point of intersection are (2.0, 9.0) and (-1.5, 2.0)

292.

The interquartile range of distribution is 7. If the 25th percentile is 16, find the upper quartile.

A.

35

B.

30

C.

23

D.

9

Correct answer is C

Q\(_3\) - Q\(_1\) = 7

Q\(_3\) - 16 = 7

Q\(_3\) - 7 + 16

= 23

293.

A woman received a discount of 20% on a piece of cloth she purchased from a shop. If she paid $525.00, what was the original price?

A.

$675.25

B.

$660.25

C.

$656.25

D.

$616.25

Correct answer is C

\(\frac{20}{100}\) x \(x\) = \(x - 525\)

\(\frac{x}{5} = x\) - 535

x = 5x - 2625

\(\frac{4x}{4} = \frac{2625}{4}\) 

x = $656.25

294.

Which of the following is not a sufficient condition for two triangles to be congruent?

A.

AAS

B.

SSS

C.

SAS

D.

SSA

Correct answer is D

No explanation has been provided for this answer.

295.

In the diagram, O is the center of the circle. \(\overline{PQ}\) and \(\overline{RS}\)  are tangents to the circle. Find the value of (M + N).

A.

120\(^o\)

B.

90\(^o\)

C.

75\(^o\)

D.

60\(^o\)

Correct answer is B

m + n + 90\(^o\) + 180\(^o\) (sum of angle in a \(\triangle\))

m + n = 180\(^o\) - 90\(^o\)

m + n =90\(^o\)