# IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 668 - 673 of 968

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## Question 668

### Question

MCQ▾

Using two, five and seventh digits of the number , one time each, which is the perfect square of a two-digit odd number, which of the following will be the second number of the odd number? .

### Choices

Choice (4)Response

a.

11

b.

7

c.

9

d.

3

## Question 669

### Question

MCQ▾

Which of the following diagrams correctly represents Bitter Gourd, Pointer Guard, apricot, Vegetables?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 670

### Question

MCQ▾

Which of the four is least like the other three?

### Choices

Choice (4)Response

a.

Mountain

b.

Sea

c.

Tower

d.

River

## Question 671

### Question

MCQ▾

In the following number series how many 9՚s are followed by a square number but not preceded by an odd number?

### Choices

Choice (4)Response

a.

6

b.

7

c.

5

d.

4

## Question 672

MCQ▾

If and then

### Choices

Choice (4)Response

a.

61551

b.

61155

c.

55116

d.

15516

## Question 673

### Question

MCQ▾

In a certain code language, ‘123’ means ‘bright little girl’ , ‘145’ mean ‘tall big girl’ and ‘637’ means ‘beautiful little tree’ . Which digit in that language means ‘bright’ ?

### Choices

Choice (4)Response

a.

1

b.

2

c.

4

d.

3