# IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 421 - 427 of 968

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## Question number: 421

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### Question

If the centroid of the triangle formed by the points is at the origin, then

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Choice (4)Response

a.

b.

0

c.

d.

## Question number: 422

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### Question

Find the area of the triangle whose vertices are and

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Choice (4)Response

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d.

## Question number: 423

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### Question

A card is drawn from a well-shuffled pack of 52 cards. The probability that the card neither a black card nor a king is ________

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Choice (4)Response

a.

b.

c.

d.

## Question number: 424

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### Question

A bag contains 6 blue and 4 green marbles. If a marble is drawn at random from the bag, the probability that the marble drawn is green, is ________

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Choice (4)Response

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d.

## Question number: 425

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### Question

In a , coordinates of J are and the equations of the medians through K and L is and respectively, so the coordinates of K and L are ________

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Choice (4)Response

a.

b.

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d.

## Question number: 426

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### Question

The coordinates of the third vertex of an equilateral triangle whose two vertices are at are ________

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Choice (4)Response

a.

b.

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d.

## Question number: 427

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### Question

The coordinates of the mid-points of the sides of a triangle are . What will be the coordinates of the centroid of the triangle?

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Choice (4)Response

a.

b.

c.

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