# Mental Ability (NCO- Cyber Olympiad Class 9): Questions 175 - 180 of 219

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## Question number: 175

» Mental Ability » Basic Algebra

MCQ▾

### Question

 X -2 -1 0 1 2 Y -8 -5 -2 1 4

Which equation fits the data in the table?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 176

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Find the measure of all the angles of parallelogram, if one angle is 24° less than twice the smallest angle.

### Choices

Choice (4) Response

a.

60°, 120°, 60°, 120°

b.

66°, 114°, 66°, 114°

c.

68°, 112°, 68°, 112°

d.

56°, 124°, 56°, 124°

## Question number: 177

» Mental Ability » Basic Algebra

MCQ▾

### Question

What is the slope of the line ?

### Choices

Choice (4) Response

a.

5

b.

4

c.

-6

d.

6

## Question number: 178

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Given, , and find the value of the following expression correct up to three places of decimal: .

### Choices

Choice (4) Response

a.

-0.413

b.

0.213

c.

-0.213

d.

0.413

## Question number: 179

» Mental Ability » Number Games » Number Analogies

Match List-Ⅰ List-Ⅱ▾

### Question

Match the following
 List-Ⅰ List-Ⅱ (A) Equation (i) Natural (B) 1 (ii) Rational (C) Equation (iii) Rational (D) 8 (iv) Natural

### Choices

Choice (4) Response
• (A)
• (B)
• (C)
• (D)

a.

• (ii)
• (iv)
• (i)
• (iii)

b.

• (iii)
• (iv)
• (iii)
• (iv)

c.

• (iv)
• (ii)
• (i)
• (iii)

d.

• (iv)
• (i)
• (iii)
• (ii)

## Question number: 180

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

The bacteria in a culture grows by 10 % in the first hour, decreases by 10 % in the second hour and again increases by 10 % in the third hour. If at the end of the third hour the count of bacteria is 30000. The original count of bacteria in the sample is________

### Choices

Choice (4) Response

a.

32870

b.

32670

c.

32970

d.

32770

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