# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 201 - 206 of 931

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## Question 201

Edit

### Question

MCQ▾

In the given figure, the value of y is ________

### Choices

Choice (4)Response
a.10
b.20
c.24
d.22

## Question 202

Edit

### Question

MCQ▾

In the given figure, , and , find

### Choices

Choice (4)Response
a.55˚
b.50˚
c.45˚
d.60˚

## Question 203

Edit

### Question

MCQ▾

Ray OE bisects ∠AOB and OF is the ray opposite OE, then ∠FOB = ________

### Choices

Choice (4)Response
a.∠BOE
b.∠FOE
c.∠AOE
d.∠FOA

## Question 204

Edit

### Question

MCQ▾

In the figure, p is greater than q by one third of a right angle. Find the values of p and q.

### Choices

Choice (4)Response
a.p = 75˚ and q = 105˚
b.p = 105˚ and q = 75˚
c.p = 115˚ and q = 65˚
d.p = 65˚ and q = 115˚

## Question 205

Edit

### Question

MCQ▾

If two supplementary angles are in the ratio 13: 5, then the angles is ________

### Choices

Choice (4)Response
a.125˚, 55˚
b.145˚, 35˚
c.130˚, 50˚
d.120˚, 60˚

## Question 206

Edit

### Question

MCQ▾

In the given figure, ∠COD is a right angle. ∠AOC and ∠BOD are in the ratio of 3: 2, thus ∠BOD measures________

### Choices

Choice (4)Response
a.50˚
b.40˚
c.36˚
d.54˚