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.

1,146.

In the diagram, ST is parallel to UW, < WVT = xo, < VUT = yo, < RSV = 45o and < VTU = 20o. Find the value of x

A.

20

B.

45

C.

65

D.

135

Correct answer is B

From the diagram SR//UW given that < RSV = 45o and < WVT = xo

< WVT = 45o(corresponding angle)

xo = 45

1,147.

In the diagram, PQR is a straight line, (m + n) = 120o and (n + r) = 100o. Find (m + r)

A.

110o

B.

120o

C.

140o

D.

160o

Correct answer is C

No explanation has been provided for this answer.

1,148.

In the diagram, the value of x + y = 220o. Find the value of n

A.

20o

B.

40o

C.

60o

D.

80o

Correct answer is B

y + z = 180o

z = 180o - y

x + k = 180o

k = 180o - x

the sum of angles in the \(\bigtriangleup\) are: n + z + k = 180

but n + 180o - y + 180o - x = 180o

n + 180o - y - x = 0

but we want to find n

n + 180o = x + y

but x + y = 220o

n + 180o = 220o

n = 220o - 180o

n = 40o

1,149.

The bar chart shows the scores of some students in a test. If one students is selected at random, find the probability that he/she scored at most 2 marks

A.

\(\frac{11}{18}\)

B.

\(\frac{11}{20}\)

C.

\(\frac{7}{22}\)

D.

\(\frac{5}{19}\)

Correct answer is B

at most 2 marks = 5 + 2 + 4 students = 11 students

probability(at most 2 marks) = \(\frac{11}{20}\)

1,150.

The bar chart shows the scores of some students in a test. How many students took the test?

A.

18

B.

19

C.

20

D.

22

Correct answer is C

score 0 = 4 students

score 1 = 2 students

score 2 = 5 students

score 3 = 6 students

score 4 = 3 students

= 20 students