Mental Ability-Basic Algebra (NCO- Cyber Olympiad Class 9): Questions 67 - 71 of 101

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Question number: 67

» Mental Ability » Basic Algebra

Appeared in Year: 2011

MCQ▾

Question

22a3+27b3+125c3452abc is expressed as a product of a linear factor and a quadratic factor. The linear factor is ________

Choices

Choice (4) Response
a.

2a+3b+5c

b.

2a3b+5c

c.

2a+3b+5c

d. All of the above

Question number: 68

» Mental Ability » Basic Algebra

MCQ▾

Question

Which of the equations below represents the second step of the solution process?

Step 1. 5(6x+4)+1=39

Step 2. ________

Step 3. 30x+21=39

Step 4. 30x=60

Step 5. X=2

Choices

Choice (4) Response
a.

5(6x+1)+4=39

b.

30x+4+1=39

c.

30x+20x+1=39

d.

5(6x+5)=39

Question number: 69

» Mental Ability » Basic Algebra

MCQ▾

Question

A classroom contained an equal number of boys and girls. Eight girls left to play hockey, leaving twice as many boys as girls in the classroom. Then the number of students in the class originally was________

Choices

Choice (4) Response
a.

25

b.

14

c.

18

d. None of the above

Question number: 70

» Mental Ability » Basic Algebra

MCQ▾

Question

A Stadium contained an equal number of boys and girls. 20 boys left to play volleyball, leaving twice as many girls as boys in the Stadium. Then the number of students in the Stadium originally was________

Choices

Choice (4) Response
a.

80

b.

100

c.

120

d.

90

Question number: 71

» Mental Ability » Basic Algebra

Appeared in Year: 2011

MCQ▾

Question

Look at the given figure. What will be the new coordinates of the figure when it is reflected across the y-axis?

Given the 3 coordinates in graph

Given the 3 Coordinates in Graph

Given the 3 coordinates in graph and find the reflected across the y-axis

Choices

Choice (4) Response
a.

(1,1),(4,3),(2,5)

b.

(1,1),(4,3),(2,5)

c.

(1,1),(3,4),(5,2)

d.

(1,1),(3,4),(5,2)

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