IMO- Mathematics Olympiad Class 10: Questions 377 - 381 of 958

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Question number: 377

» Coordinate Geometry

MCQ▾

Question

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

Choices

Choice (4) Response

a.

20.5 sq. units.

b.

19.3 sq. units

c.

33.5 sq. units

d.

45.2 sq. units

Question number: 378

» Statistics & Probability

MCQ▾

Question

The mean weight of a class of 24 students is Equation kg. if the weight of the teacher is included, the mean rises by 400 g. Then the weight of the teacher is ________

Choices

Choice (4) Response

a.

55 kg

b.

45 kg

c.

65 kg

d.

50 kg

Question number: 379

» Statistics & Probability

MCQ▾

Question

The average temperatures of Monday, Tuesday, Wednesday and Thursday was Equation . The average temperature of Tuesday, Wednesday, Thursday and Friday was Equation . If the temperature on Monday was Equation , then the temperature on Friday was ________.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 380

» Coordinate Geometry

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 381

» Statistics & Probability

MCQ▾

Question

The mean of ten numbers is 60. If one number is excluded, then their mean is 50, the excluded number is ________

Choices

Choice (4) Response

a.

130

b.

160

c.

140

d.

150

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