# IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 385 - 391 of 968

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## Question number: 385

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MCQ▾

### Question

In the given figure And , then ________ Given the Triangle DEF and Multiple Lines Are Parallel Given the triangle DEF and GH are parallel to DF and GI are parallel to DH

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 386

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MCQ▾

### Question

The mean of is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 387

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MCQ▾

### Question

is three vertices of the parallelogram ABCD. The coordinates of fourth vertex is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 388

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MCQ▾

### Question

If occur with frequencies respectively, then the arithmetic mean is ________

### Choices

Choice (4) Response

a.

5.5

b.

6.5

c.

3.5

d.

4.4

## Question number: 389

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### Question

The coordinates of the centre of a circle passing through is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 390

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### Question

Orthocenter of the triangle formed by the lines and is ________

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Choice (4) Response

a.

b.

c.

d.

## Question number: 391

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MCQ▾

### Question

A bag contains 6 Red, 9 Blue and 5 Black marbles. If a marble is drawn at random from the bag, the probability that the marble drawn is red or Blue, is ________

### Choices

Choice (4) Response

a.

b.

c.

d.