# Mental Ability-Basic Arithmetic (NCO- Cyber Olympiad (SOF) Class 5): Questions 128 - 133 of 147

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## Question number: 128

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Which group shows the prime factorization of the number 125?

### Choices

Choice (4) Response

a.

2 8

b.

2 2

c.

5 3

d.

5 5

## Question number: 129

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

A table is bought for 400 Rs. and sold at a gain of 20%, find its selling price.

### Choices

Choice (4) Response

a.

380 Rs.

b.

420 Rs.

c.

320 Rs.

d.

480 Rs.

## Question number: 130

» Mental Ability » Basic Arithmetic

MCQ▾

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 131

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Mr. Kumar and his wife is 30 year old. The ages of Mr. Kumar, his wife and their son add up to 70. Which equation could be used to determine

How old his son is if n = his son’s age?

### Choices

Choice (4) Response

a.

30 + 30 + 70 = n

b.

30 + 30 + n =70

c.

30 + n+70 = 30

d.

All of the above

## Question number: 132

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

A boy buys chocolates 10 for 1.80 Rs. and sells 11 chocolates for 2 Rs. What is his gain or loss per cent?

### Choices

Choice (4) Response

a.

1.01%

b.

1%

c.

2%

d.

Question does not provide sufficient data or is vague

## Question number: 133

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

How many students attended class of English?

 Subject name Number of Student English 200 Mathematics 150 Economy 100 Science 120

### Choices

Choice (4) Response

a.

150

b.

100

c.

200

d.

120

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