IMO- Mathematics Olympiad Class 10: Questions 388 - 392 of 908

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Question number: 388

» Statistics & Probability

MCQ▾

Question

If 2,5,7,and9 occur with frequencies 7,4,2and2 respectively, then the arithmetic mean is ________

Choices

Choice (4) Response

a.

4.4

b.

5.5

c.

3.5

d.

6.5

Question number: 389

» Coordinate Geometry

MCQ▾

Question

The coordinates of the centre of a circle passing through (1,6),(2,1)and(5,2) is ________

Choices

Choice (4) Response

a.

(5,3)

b.

(3,5)

c.

(3,5)

d.

(5,3)

Question number: 390

» Coordinate Geometry

MCQ▾

Question

Orthocenter of the triangle formed by the lines xy=0 and x+y=1 is ________

Choices

Choice (4) Response

a.

(0,1)

b.

(1,0)

c.

(0,0)

d.

(1,1)

Question number: 391

» Statistics & Probability

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.

34

b.

65

c.

13

d.

43

Question number: 392

» Triangle, Circle & Constructions

MCQ▾

Question

In the adjacent figure, BA and BC are produced to meet CD and AD produced in E and F. then AED+CFD is ________

Figure BA and BC are produced to meet CD & AD produced in E & F

Figure BA and BC Are Produced to Meet CD & AD Produced in E & F

Given the adjacent figure BA and BC are produced to meet CD and AD produced in E and F then find sum of Angles AED and CFD

Choices

Choice (4) Response

a.

80°

b.

160°

c.

40°

d.

50°

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