NECO Mathematics Past Questions & Answers - Page 19

91.

A bag contains p dozens of bananas and 3q of these proved to be bad. If I buy one third of the goods ones, how many do I get?

A.

P -3q

B.

\(\frac{1}{3}\) (p - 3q)

C.

3q

D.

4p - q

E.

12p - 3q

Correct answer is D

No explanation has been provided for this answer.

92.

Four pupils have an average age of 12years and two other pupils of average age of 10.5years are added. What is the average age of the six pupils?

A.

10.5yrs.

B.

11yrs.

C.

11.5 yrs.

D.

12yrs.

E.

12.5yrs.

Correct answer is C

No explanation has been provided for this answer.

93.

The bearing of Y from X is 085º. What is the bearing of X from Y?

A.

005°

B.

095°

C.

185°

D.

265°

E.

275°

Correct answer is D

The bearing of Y from X is 085º lies within 90º

The bearing of X from Y lies within 270º

: 180º + 85º = 265º

94.

The roots of a quadratic equation in x, are -m and 2n. Fine equation.

A.

x2 - x(2n-m) – 2mn = 0

B.

x2 + x(2n - m) - 2mn = 0

C.

x2 + x(m - 2n) + 2mn = 0

D.

X2 + x (m + 2n ) + 2mn = 0

E.

x2 - x (m - 2n) - 2mn = 0

Correct answer is A

No explanation has been provided for this answer.

95.

Evaluate (Log13 - log5) ÷ X(log5-log13) without using tables

A.

X

B.

–x

C.

X-1

D.

–X-1

E.

-1

Correct answer is D

No explanation has been provided for this answer.