WAEC Past Questions and Answers - Page 2697

13,481.

Charles Babbage was the first to?

A.

invent slide rule

B.

invent analytical engine

C.

make census machine

D.

make use of the punched card

Correct answer is B

No explanation has been provided for this answer.

13,482.

If m = 4, n = 9 and r = 16., evaluate \(\frac{m}{n}\) - 1\(\frac{7}{9}\) + \(\frac{n}{r}\)

A.

1\(\frac{5}{16}\)

B.

1\(\frac{1}{16}\)

C.

\(\frac{5}{16}\)

D.

- 1\(\frac{37}{48}\)

Correct answer is D

If m = 4, n = 9, r = 16,

then \(\frac{m}{n}\) - 1\(\frac{7}{9}\) + \(\frac{n}{r}\)

= \(\frac{4}{9}\) - \(\frac{16}{9}\) + \(\frac{9}{16}\)

= \(\frac{64 - 256 + 81}{144}\)

= \(\frac{-111}{144}\)

= - 1\(\frac{37}{48}\)

13,483.

The source of fund for Mr. John who got his capital from the money he kept in bank is_____________

A.

Personal savings.

B.

Bank loan.

C.

Plough-back profit.

D.

Bank overdraft.

Correct answer is A

No explanation has been provided for this answer.

13,484.

Find the equation whose roots are \(\frac{3}{4}\) and -4

A.

4x2 - 13x + 12 = 0

B.

4x2 - 13x - 12 = 0

C.

4x2 + 13x - 12 = 0

D.

4x2 + 13x + 12 = 0

Correct answer is C

Let x = \(\frac{3}{4}\) or x = -4

i.e. 4x = 3 or x = -4

(4x - 3)(x + 4) = 0

therefore, 4x2 + 13x - 12 = 0

13,485.

One of the stages in the marketing research process is________

A.

Problem definition.

B.

Market segmentation.

C.

Silk, quota allocation.

D.

Market share determination.

Correct answer is A

No explanation has been provided for this answer.