# Mental Ability (NCO- Cyber Olympiad (SOF) Class 9): Questions 38 - 45 of 219

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## Question number: 38

» Mental Ability » Number Games » Number Series

MCQ▾

### Question

8, 6, 9, 23, 87, ________what number should come next?

### Choices

Choice (4) Response

a.

226

b.

128

c.

345

d.

429

## Question number: 39

» Mental Ability » Basic Algebra

MCQ▾

### Question

If , then b equals

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 40

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Ramila got married 7 years ago. Today her age is times her age at the time of marriage. Her son’s age is times her age. Her son’s age is________

### Choices

Choice (4) Response

a.

2.8 years

b.

5 years

c.

4.1 years

d.

3.3 years

## Question number: 41

» Mental Ability » Basic Algebra

MCQ▾

### Question

The factors of the expression are

### Choices

Choice (4) Response

a.

b.

c.

d.

All a. , b. and c. are correct

## Question number: 42

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Three years ago the average age of P and Q was 16 years. With R joining them, the average becomes 20 years. How old is R now?

### Choices

Choice (4) Response

a.

22 years

b.

34 years

c.

45 years

d.

12 years

## Question number: 43

» Mental Ability » Basic Geometry

MCQ▾

### Question

Triangle PAB is formed by three tangents to circle O and ; then angle AOB equals

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 44

» Mental Ability » Number Games » Number Analogies

MCQ▾

### Question

OM = 28 and RIYA = 53, RITU=?

### Choices

Choice (4) Response

a.

58

b.

68

c.

88

d.

78

## Question number: 45

» Mental Ability » Basic Geometry

MCQ▾

### Question

The series of diagrams called PROBLEM FIGURES consists of figures in a particular sequence. You have to pick out the figure from the given options which should come at the end of problem figures.

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page