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.

3,616.

Find the locus of a particle which moves in the first quadrant so that it is equidistant from the lines x = 0 and y = 0 (where k is a constant)?

A.

x + y = 0

B.

x - y = 0

C.

x + y + k = 0

D.

x - y - k = 0

Correct answer is B

No explanation has been provided for this answer.

3,617.

Find the radius of a sphere whose surface area is 154 cm\(^2\)?

A.

7.00 cm

B.

3.50 cm

C.

3.00 cm

D.

1.75 cm

Correct answer is B

154 = 4 x 22 x  r\(^2\)
7

 

154x7

r\(^2\)

4x22

 


√ 49/4  = r

 

 

 

 

7 = r
2


∴r = 3.50

 

 

3,618.

A chord drawn 5 cm away from the center of a circle of radius 13 cm. Calculate the length of the chord?

A.

7cm

B.

9cm

C.

12cm

D.

24cm

Correct answer is D

No explanation has been provided for this answer.

3,619.

If the hypotenuse of a right-angled isosceles triangle is 2cm. What is the area of the triangle?

A.

1/√2 cm2

B.

1 cm2

C.

√2 cm2

D.

2√2 cm2

Correct answer is B

No explanation has been provided for this answer.

3,620.

In the figure above , TS//XY and XY = TY, ∠STZ = 34°, ∠TXY = 47°, find the angle marked n?

A.

47o

B.

52o

C.

56o

D.

99o

Correct answer is B

In Δ TYX
XY = TY ∴y =47° base ∠s of ISCΔ
But y+x+34+47 = 180 interior
opposite ∠s are supplementary
47 + x + 34 + 47 = 180
x + 128= 180
x = 180- 128
x = 52°