Description
BIC Nigeria Recruitment Past Questions and Answers
This study pack – BIC Nigeria Tests Past Questions and Answers , will help you prepare faster for your best performance in the BIC Nigeria Aptitude Tests .
A crucial part of your preparation is to practice previous years’ papers. This will help you understand the exam pattern, know the level of difficulty and ultimately, and help you answer questions correctly and speedily.
About the test format
BIC Nigeria Past questions comprises of Maths, English, General knowledge. In the test, you will be given about 60 questions to solve in 60 minutes.
MATHEMATICS
1. Roots of a quadratic equation are real when discriminant is ______________
a) zero
b) greater than zero
c) less than zero
d) greater than or equal to zero
Explanation: For a quadratic equation, ax2+bx+c = 0, discriminant is b2-4ac.
Roots are −b±b2−4ac√2a. For real roots, radical must be non-negative i.e. discriminant should be greater than or equal to zero.
2. Roots of a quadratic equation are imaginary when discriminant is ______________
a) zero
b) greater than zero
c) less than zero
d) greater than or equal to zero
Explanation: For a quadratic equation, ax2+bx+c = 0, discriminant is b2-4ac.
Roots are −b±b2−4ac√2a. For imaginary roots, radical is negative i.e. discriminant should be less than zero.
3. Solve x2+1 = 0.
a) x=1, -1
b) x=i, -i
c) x=-1
d) x=i
Explanation: x2+1 = 0
=>x2 = -1 => x = ±−1−−−√ = ±i.
4. Solve 2x2 + x + 1 = 0.
a) −1±i7√4
b) 1±i7√4
c) 1±7√4
d) −1±7√4
Explanation: 2x2 + x + 1 = 0
D=12-4*2*1 = 1-8 = -7 ≤ 0.
Since D ≤ 0, imaginary roots are there.
=>x = −1±12−4˙2.1√2.2=−1±i7√4.
5. Solve – x2 + x – 2 = 0.
a) −1±i7√2
b) 1±i7√2
c) 1±7√2
d) −1±7√2
Explanation: – x2 + x – 2 = 0
=>x2-x+2 = 0
D=(-1)2-4*1*2 = 1-8 = -7 ≤ 0.
Since D ≤ 0, imaginary roots are there.
=>x = 1±D√2.1=1±i7√2.
ENGLISH LANGUAGE
1: He , She and It are _______________ pronouns.
a) First Person
b) Second Person
c) Third Person
d) None of these
Answer: c)
2:To show the end of a sentence we use:
a) Comma
b) Colon
c) Semi-colon
d) Full Stop
Answer: d)
3:The solder fought ______________
a) Honestly
b) Purely
c) Slowly
d) Bravely
Answer:: d)
4:Which of the following sentence is punctuated correctly:
a) Mango apple banana and grapes are fruit.
b) Mango, apple, banana and grape are fruit.
c) Mango apple, banana grape are fruit.
d) Mango and apple and banana and grape are fruit.
Answer: b).
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