If log 2 = x, log 3 = y and log 7 = z, find, in terms of x, y and z, the value of log (\(\frac{28}{3}\))

A.

2x + y - z

B.

2x + z - y

C.

x + y - 2x

D.

x + x - y

View answer & explanation

Correct answer is B

log (\(\frac{28}{3}) = \log (\frac{7 \times 4}{3})\)

= log 7 + log 4 - log 3

log 7 + log 22 - log 3 = log 7 + 2 - log 3

= z + 2x - y

= 2x + z - y

See all Mathematics questions & answers
See more WAEC questions & answers
Aptitude Tests

Verbal Reasoning Questions and Answers

Microsoft Office Questions and Answers

Typing Speed and Accuracy Test

Abstract Reasoning Questions and Answers

Spatial Reasoning Questions and Answers

Data Interpretation Questions and Answers

Personality Test

Nigeria General Knowledge Questions and Answers

Logical Reasoning Questions and Answers

Numerical Reasoning Questions and Answers

Puzzles Questions and Answers

Situational Judgement Questions and Answers

Quantitative Reasoning Questions and Answers

See all →


View latest jobs in Nigeria today