# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 911 - 917 of 931

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## Question 911

Edit

### Question

MCQ▾

If show that = ________.

### Choices

Choice (4)Response
a.2
b.-1
c.1
d.0

## Question 912

Edit

### Question

MCQ▾

If (2,0) is a solution of the linear equation then the value of k is ________

### Choices

Choice (4)Response
a.2
b.5
c.6
d.4

## Question 913

Edit

### Question

MCQ▾

The mean of 18 observations is 30. If the mean of the first 8 observations is 25 and that of the last 10 observations is 34, then the 8th observation is ________

### Choices

Choice (4)Response
a.70
b.58
c.66
d.68

## Question 914

Edit

MCQ▾

If and then

### Choices

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

## Question 915

Edit

### Question

MCQ▾

According to Euclid, a Line has________

### Choices

Choice (4)Response
a.No length, no breadth and no thickness
b.Length but no breadth and thickness
c.Thickness but no breadth and length
d.Breadth but no length and thickness

## Question 916

Edit

### Question

MCQ▾

Mayur bought pencil at Rs. 3 each and y getting cards at 90 paise each. If the pencil cost Rs. 15 more than the cards, the equation involving x and y are ________

### Choices

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

## Question 917

Edit

### Question

MCQ▾

Raj starts from his office facing west and walks 100 meters straight, then takes a right turn and walks 100 meters. Further, he takes a left turn and walks 50 meters. In which direction is Raj now from the starting point?

### Choices

Choice (4)Response
a.North
b.South-West
c.North-West
d.North-East