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Further Mathematics questions and answers

Further Mathematics Questions and Answers

Test your knowledge of advanced level mathematics with this aptitude test. This test comprises Further Maths questions and answers from past JAMB and WAEC examinations.

686.

A force (10i + 4j)N acts on a body of mass 2kg which is at rest. Find the velocity after 3 seconds.

A.

(5i3+2j3)ms1

B.

(10i3+4j3)ms1

C.

(5i+2j)ms1

D.

(15i+6j)ms1

Correct answer is D

Recall, F=mass×accelerationacceleration=forcemass

= 10i+4j2=(5i+2j)ms2

= v=u+atvat 3 seconds=0+(5i+2j×3)

= (15i+6j)ms1

687.

Given that a = 5i + 4j and b = 3i + 7j, evaluate (3a - 8b).

A.

9i + 44j

B.

-9i + 44j

C.

-9i - 44j

D.

9i - 44j

Correct answer is C

= 3(5i+4j)8(3i+7j)=15i+12j24i56j

= 9i44j

688.

Face 1 2 3 4 5 6
Frequency 12 18 y 30 2y 45

 Given the table above as the result of tossing a fair die 150 times, find the mode.

A.

3

B.

4

C.

5

D.

6

Correct answer is D

The mode is the occurrence with the highest frequency which, from the table, is 45 (the occurrence of obtaining a 6).

689.

Face 1 2 3 4 5 6
Frequency 12 18 y 30 2y 45

Given the table above as the results of tossing a fair die 150 times. Find the probability of obtaining a 5.

A.

110

B.

16

C.

15

D.

310

Correct answer is C

Probability of obtaining a 5 = frequency of 5total frequency

12+18+y+30+2y+45=150105+3y=150

3y=45;y=15

Probability of 5 = 2×15150=15

690.

Given that a=(23) and b=(14), evaluate (2a14b)

A.

(1747)

B.

(1745)

C.

(1743)

D.

(1742)

Correct answer is B

a=(23)b=(14)

2×a=(46) and 14×b=(141)

\begin{pmatrix} \frac{17}{4} \\ 5 \end{pmatrix}