# IMO Level 2- Mathematics Olympiad (SOF) Class 9: Questions 75 - 78 of 109

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## Question 75

Appeared in Year: 2014

### Question

MCQ▾

A heap of wheat is in the form of a cone, whose diameter is 10.5 m and height 7 m. Find the lateral surface area of wheat in the heap.

### Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

## Question 76

Appeared in Year: 2014

### Question

MCQ▾

Which of the following statements is INCORRECT?

### Choices

Choice (4)Response

a.

A linear equation in two variables has infinitely many solutions.

b.

The graph of every linear equation in two variables is a straight line

c.

The graph of is a straight line parallel to the y-axis

d.

Every point on the graph of a linear equation in two variables is a solution of the linear equation. Every solution of the linear equation may not be a point on the graph of the linear equation.

## Question 77

Appeared in Year: 2013

### Question

MCQ▾

Rahul told Anand, “Yesterday I defeated the only brother of the daughter of my grandmother.” Whom did Rahul defeat?

### Choices

Choice (4)Response

a.

Brother

b.

Son

c.

Father-in-law

d.

Father

## Question 78

Appeared in Year: 2013

### Question

MCQ▾

A bonus of ₹ is to be divided among three people so that Rohit receives twice as much as Sachin, who receives one-fifth as much as Gagan. How much money should Gagan receive?

### Choices

Choice (4)Response

a.

b.

c.

d.