IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 452 - 459 of 968

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Question number: 452

» Triangle, Circle & Constructions

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MCQ▾

Question

In an isosceles triangle ABC, is bisected by AD where D lies on BC. It is found that . Then equals ________

Given the triangle ABC and D is a lies on BC

Given the Triangle ABC and D is a Lies on BC

Given the triangle ABC and angle BAC is bisected by AD where D lies on BC

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 453

» Statistics & Probability

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MCQ▾

Question

The mean of is ________

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 454

» Coordinate Geometry

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MCQ▾

Question

Area of quadrilateral formed by the vertices is ________

Choices

Choice (4)Response

a.

9 sq. units

b.

8 sq. units

c.

10 sq. units

d.

7 sq. units

Question number: 455

» Statistics & Probability

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MCQ▾

Question

The average of 6 number is 40. If one of the numbers is excluded, the mean gets reduced by 5. Then the excluded number is ________

Choices

Choice (4)Response

a.

35

b.

55

c.

65

d.

45

Question number: 456

» Coordinate Geometry

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MCQ▾

Question

Four vertices of a parallelogram taken in order are . What will be the ratio of a and b?

Choices

Choice (4)Response

a.

2: 1

b.

3: 4

c.

3: 1

d.

Question number: 457

» Statistics & Probability

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MCQ▾

Question

A Train maintains an average speed of 40 km/hr while going from L to M and maintains an average speed of 60 km/hr while coming back from M to L. the average speed of the bus is ________.

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 458

» Coordinate Geometry

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MCQ▾

Question

Points are joined to form a quadrilateral. What will be the structure of quadrilateral?

Choices

Choice (4)Response

a.

Square

b.

Rhombus

c.

Parallelogram

d.

Rectangle

Question number: 459

» Coordinate Geometry

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MCQ▾

Question

If are the midpoints of the sides of , the area of the triangle is ________

Choices

Choice (4)Response

a.

24 sq. units

b.

50 sq. units

c.

96 sq. units

d.

48 sq. units

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