# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 122 - 131 of 1042

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## Question 122

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MCQ▾

If , then can be

### Choices

Choice (4)Response
a.13
b.12
c.11
d.15

## Question 123

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### Question

MCQ▾

Square root of 2401 is________.

### Choices

Choice (4)Response
a.87
b.78
c.49
d.76

## Question 124

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### Question

MCQ▾

A number is multiplied by itself and then 15 is subtracted from the product. If the final result is 2545, then find the original number.

### Choices

Choice (4)Response
a.30
b.31
c.13
d.32

## Question 125

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### Question

MCQ▾

The area of a square field is sq. m. The length of each side of the field is ________.

### Choices

Choice (4)Response
a.2.00
b.2.50
c.4.00
d.1.92

## Question 126

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### Question

MCQ▾

The number must be subtracted from 13245 to get a perfect square is________.

### Choices

Choice (4)Response
a.15
b.20
c.11
d.10

## Question 127

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### Question

MCQ▾

Find the smallest square number which is exactly divisible by 15,25, and 30 is, ________

### Choices

Choice (4)Response
a.500
b.180
c.100
d.900

## Question 128

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### Question

MCQ▾

The value of is________.

### Choices

Choice (4)Response
a.0
b.
c.
d.

## Question 129

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### Question

MCQ▾

If , then equals________.

### Choices

Choice (4)Response
a.4
b.1
c.3
d.2

## Question 130

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### Question

MCQ▾

The value of is________.

### Choices

Choice (4)Response
a.2
b.
c.
d.Both b. and c. are correct

## Question 131

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### Question

MCQ▾

The least two digit number, which is a perfect square is ________

### Choices

Choice (4)Response
a.4
b.16
c.12
d.9