IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 322 - 327 of 1040

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Question number: 322

» Quadrilaterals and Practical Geometry

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MCQ▾

Question

The exterior angle of a regular polygon is one-fourth of its interior angle. How many sides has the polygon?

Choices

Choice (4) Response

a.

12

b.

4

c.

10

d.

8

Question number: 323

» Quadrilaterals and Practical Geometry

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MCQ▾

Question

To construct a convex quadrilateral which of the following cases is not correct?

Choices

Choice (4) Response

a.

When the lengths of four sides and one diagonal are given

b.

When the lengths of three sides and the two diagonal given.

c.

When the lengths of two sides and one angle are given.

d.

When the lengths of two sides and two included angles are given.

Question number: 324

» Quadrilaterals and Practical Geometry

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MCQ▾

Question

ABCD is a quadrilateral. If its diagonals are perpendicular bisectors of each other, then ABCD is________.

Choices

Choice (4) Response

a.

Rectangle

b.

Rhombus

c.

Square

d.

Parallelogram

Question number: 325

» Comparing Quantities

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MCQ▾

Question

If a number x is 15 % less than another number y and y is 15 % more than 110, then x is equal to________.

Choices

Choice (4) Response

a.

100.25

b.

109.725

c.

107.525

d.

120

Question number: 326

» Comparing Quantities

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MCQ▾

Question

The cost of a vehicle is Rs. 1,20,000. If its value depreciates at the rate of 10 % per annum then total depreciation after 2 years was________.

Choices

Choice (4) Response

a.

21100

b.

22800

c.

21000

d.

22000

Question number: 327

» Comparing Quantities

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MCQ▾

Question

The C. I. on a certain sum for 2 years is Rs. 410 and S. I. is Rs. 400. The rate of interest per annum is________.

Choices

Choice (4) Response

a.

6%

b.

4%

c.

5%

d.

3%