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.

926.

The radii of two similar cylindrical jugs are in the ratio 3:7. Calculate the ratio of their volumes

A.

1 : 04

B.

3 : 07

C.

9 : 49

D.

0.086111111

E.

27 : 343

Correct answer is E

radius ratio volume

r = \(r^3\)

so that 

3 : 7 = \(3^3 : 7^3\) = 27 : 343

927.

Simplify the expression:  \(Log_{4}16\) +  \(Log_{3}27\) + \(Log_{8}4096\) 

A.

-9

B.

\(\frac{1}{3}\)

C.

\(\frac{1}{9}\)

D.

3

E.

9

Correct answer is E

WHERE:

\(Log_{4}16\) = 2

\(Log_{3}27\) = 3

\(Log_{8}4096\) = 4

: 2 + 3 + 4 = 9

928.

Find y if sin y = cos 48°

A.

21°

B.

24°

C.

42°

D.

48°

E.

102°

Correct answer is C

No explanation has been provided for this answer.

929.

Given that x2 + y2 + k = 60 and x = \(\sqrt{10}\) when y = 4, find the value of k.

A.

56

B.

34

C.

32

D.

-34

E.

-56

Correct answer is B

x\(^2\) + y\(^2\) + k = 60

(√10)\(^2\) + (4)\(^2\) + k = 60

k + 10 + 16 = 60

k =  60 - 26

k = 34

930.

Increase 135 in the ratio 3:5

A.

225

B.

216

C.

143

D.

140

Correct answer is A

No explanation has been provided for this answer.