IMO- Mathematics Olympiad Class 10: Questions 371 - 376 of 958

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Question number: 371

MCQ▾

Question

J, K and L are respectively the mid-points of sides XY, YZ and XZ of. Find the ratio of the area of .

Choices

Choice (4) Response

a.

2: 3

b.

2: 7

c.

1: 4

d.

3: 5

Question number: 372

MCQ▾

Question

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

Choices

Choice (4) Response

a.

125

b.

111

c.

120

d.

115

Question number: 373

MCQ▾

Question

The mean of 11 observations is 30. If the mean of the first 6 observations is 40 and that of the last 6 observations is 44, then the Sixth observation is ________

Choices

Choice (4) Response

a.

174

b.

128

c.

137

d.

131

Question number: 374

MCQ▾

Question

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

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 375

MCQ▾

Question

Find the area of triangle if the coordinates of vertices are is ________

Choices

Choice (4) Response

a.

9 sq. units

b.

5 sq. units

c.

2 sq. units.

d.

3 sq. units

Question number: 376

MCQ▾

Question

Find the area of the quadrilateral, the coordinates of whose angular points taken in order are.

Choices

Choice (4) Response

a.

8

b.

6

c.

12

d.

10

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