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.

2,911.

What is the length of \(\bar{RP}\)?

A.

6

B.

5

C.

3

D.

2

Correct answer is B

\(\bar{RP} = 3 - (-2)\)

= 5

2,912.
2,913.

If \(M5_{ten} = 1001011_{two}\) find the value of M

A.

5

B.

6

C.

7

D.

8

Correct answer is C

\(M5_{ten} = 1001011_{two}\\
=1 \times 2^6 + 0\times 2^5 + 0\times 2^4 + 1\times 2^3 + 0\times 2^2 + 1\times 2^1 \\
=64+8+2+1=75_{ten}\\
∴ m = 7 \)

2,914.

Find the value of x in the diagram

A.

31o

B.

35o

C.

37o

D.

41o

Correct answer is B

Sum of exterior angle of any polygon is 360o
(2x+5)o + 2xo + (x-20)o + xo + (3x+10)o + (x + 15)o = 360o; 10x = 350
x = 35

2,915.

Find the value of x in 0.5x + 2.6 = 5x + 0.35

A.

0.5

B.

2

C.

2.6

D.

5

Correct answer is A

\(0.5x + 2.6 = 5x + 0.35\\
0.5x - 5x = 0.35-2.6\\
-4.5x = -2.25\\
x = \frac{-2.25}{-4.5}\\
0.5\)