# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 721 - 729 of 931

Access detailed explanations (illustrated with images and videos) to 931 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access, Unlimited Time, on Unlimited Devices!

View Sample Explanation or View Features.

Rs. 450.00 -OR-

## Question 721

### Question

MCQ▾

A man rows downstream 40 km and upstream 20 km, taking 10 hours each time. The velocity of current is ________

### Choices

Choice (4)Response

a.

5 km/hr

b.

2 km/hr

c.

3 km/hr

d.

1 km/hr

## Question 722

MCQ▾

The graph of is

### Choices

Choice (4)Response

a.

III

b.

IV

c.

II

d.

I

## Question 723

### Question

MCQ▾

Which equation satisfies the data in the table?

 X -1 0 1 2 Y -3 -1 1 3

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 724

### Question

MCQ▾

If the first three letters of the word ‘P R E P A R A T I O N’ are reversed, then last three letters are added and then the remaining letters are reversed and added, then which letter will be exactly in the middle?

### Choices

Choice (4)Response

a.

R

b.

E

c.

N

d.

T

## Question 725

### Question

MCQ▾

Given that is a solution of . The other solutions are ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 726

MCQ▾

=

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 727

MCQ▾

Factors of

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 728

MCQ▾

Factors of =

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 729

### Question

MCQ▾

The simple interest of for x years will be ₹ X on a sum of ________

### Choices

Choice (4)Response

a.

b.

₹ x

c.

d.

₹ 100 x