# Mental Ability (NCO- Cyber Olympiad (SOF) Class 7): Questions 150 - 155 of 205

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## Question number: 150

» Mental Ability » Number Games » Number Analogies

MCQ▾

### Question

On dividing a number by 4, we get 3 as remainder. What will be the remainder, when the square of this number is divided by 4?

### Choices

Choice (4) Response

a.

0

b.

1

c.

2

d.

5

## Question number: 151

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

The present ages of three persons in proportions 2: 3: 4. Five years ago, the sum of their ages was 48. Find their present ages (in years).

### Choices

Choice (4) Response

a.

16,28,26

b.

8,20,28

c.

14,21,28

d.

None of the above

## Question number: 152

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Two poles 30 m and 15 m high stand upright in a ground. If their feet are 36 m apart, find the distance between tops.

### Choices

Choice (4) Response

a.

30 m

b.

39 m

c.

35 m

d.

25 m

## Question number: 153

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

A boat covers a certain distance downstream in 2 hour, while it comes back in 1 hours. If the speed of the stream be 5 kmph, what is the speed of the boat in still water?

### Choices

Choice (4) Response

a.

25 kmps

b.

35 kmps

c.

12 kmps

d.

11 kmps

## Question number: 154

» Mental Ability » Basic Algebra

MCQ▾

### Question

Step 1:

Step 2:

Step 3:

Are the above given steps a simplification of algebraic expression

### Choices

Choice (4) Response

a.

Only step 1 is correct

b.

Only step 1 and 2 are correct

c.

No

d.

Yes

## Question number: 155

» Mental Ability » Basic Statistics

Match List-Ⅰ List-Ⅱ▾

### Question

Match the reciprocal of each of the following in exponential form:
 List-Ⅰ List-Ⅱ (A) (i) (B) (ii) (C) (iii) 1 (D) (iv)

### Choices

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

a.

• (iv)
• (iii)
• (ii)
• (i)

b.

• (ii)
• (iii)
• (iv)
• (i)

c.

• (i)
• (iii)
• (iv)
• (ii)

d.

• (ii)
• (iv)
• (i)
• (iii)

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