IMO- Mathematics Olympiad Class 9: Questions 279 - 283 of 919

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Question number: 279

MCQ▾

Question

On plotting the points A (3, 6), B (9, 6), C (5, 8), D (11, 8), E (11, 3), F (9, 1), G (3, 1) and joining AB, AC, BD, CD, DE, BF, AG, EF, GF Which of the following figure is obtained?

Choices

Choice (4) Response

a.

Teardrop

b.

Can

c.

Cube

d.

Chord

Question number: 280

MCQ▾

Question

If the coordinate of the two points are A (-2, 6) and B (-4, 5) then (abscissa of A) - (abscissa of B) is ________

Choices

Choice (4) Response

a.

1

b.

2

c.

-1

d.

-2

Question number: 281

MCQ▾

Question

The ratio between the length and the breadth of a rectangular park is. If a man cycling along the boundary of the park at the speed of 15 km/hr completes one round in 12 minutes, then the area of the park is________

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 282

MCQ▾

Question

Two regular polygons are such that the ratio between their no. of sides is 1: 2 and the ratio of measures of their interior angles is 3: 4. Find the number of sides of each polygon.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 283

MCQ▾

Question

In the medians XC, YB and ZA pass through O. If, then YB is ________

Choices

Choice (4) Response

a.

19

b.

11

c.

26

d.

21

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