# Mental Ability (NCO- Cyber Olympiad (SOF) Class 7): Questions 61 - 63 of 205

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## Question number: 61

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

The average age of 20 children in a class is 8 years. If the teacher’s age is included, the average age becomes 10 years. Find the teacher’s age.

### Choices

Choice (4) Response

a.

50

b.

42

c.

45

d.

35

## Question number: 62

» Mental Ability » Basic Algebra

MCQ▾

### Question

Statement 1: If x and y are any two rational numbers such that x < y, then is a rational number lying between x and y.

Statement 2: is a rational number that lies between and .

Is statement 2 an example for statement 1?

### Choices

Choice (4) Response

a.

Yes

b.

Information Incomplete

c.

Can’t say

d.

No

## Question number: 63

» Mental Ability » Basic Statistics

MCQ▾

### Question

Which diagram correctly illustrates the relationship between “Computer, Mouse, and TV?

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page