# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 457 - 461 of 931

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## Question 457

### Question

MCQ▾

In the given figure, ABCD and AEFC are square. △ABG is a right angled triangle. If △ABG has an area , then the area of polygon AEFCD is ________

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 458

### Question

MCQ▾

What change in percent is made in the area of a rectangle by increases its length and decreasing its breadth by ?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 459

### Question

MCQ▾

Gaurav walks 20 meters towards North. He then turns left and walks 40 meters. He again turns left and walks 20 meters. Further, he moves 20 meters after turning to the right. How far is he from his original position?

### Choices

Choice (4)Response

a.

30 meters

b.

60 meters

c.

50 meters

d.

20 meters

## Question 460

### Question

MCQ▾

The taxi fare in a city is a follows: for the first kilometer, the fare is ₹ 8 and for the subsequent distance it is ₹ 5 per kilometer. Taking the distance covered as x km and total fare as ₹ y, a linear equation for this information is ________.

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Choice (4)Response

a.

b.

c.

d.

## Question 461

### Question

MCQ▾

Two dice are thrown. What is the probability of obtaining a total of 10 or 11?

### Choices

Choice (4)Response

a.

b.

c.

d.