IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 267 - 273 of 1042

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Question 267

Question

MCQ▾

A book was sold for ₹ 30.00 with a profit of 5 % . If it were sold for ₹ 30.50, then what would have been the percentage of profit or loss?

Choices

Choice (4)Response

a.

10 %

b.

6.75 %

c.

11.04 %

d.

6.00 %

Question 268

Question

MCQ▾

To construct a quadrilateral uniquely, it is necessary to have the knowledge of at least________independent elements.

Choices

Choice (4)Response

a.

Five

b.

Four

c.

Three

d.

Two

Question 269

Question

MCQ▾

Any quadrilateral has ________ sides.

Choices

Choice (4)Response

a.

Three

b.

Four

c.

Two

d.

Five

Question 270

Question

MCQ▾

The number of sides of a regular polygon whose each exterior angle has a measure of is________.

Choices

Choice (4)Response

a.

6

b.

8

c.

3

d.

10

Question 271

Question

MCQ▾

What sum lent out at C. I. will amount to ₹ 900 in 2 years at 20 % p. a. interest?

Choices

Choice (4)Response

a.

700 ₹

b.

550 ₹

c.

625 ₹

d.

600 ₹

Question 272

Question

MCQ▾

Rice is bought at ₹ 30.50 per kg and sold at ₹ 32.00 per kg. The gain percent is________.

Choices

Choice (4)Response

a.

3.12 %

b.

4.70 %

c.

3.00 %

d.

4.91 %

Question 273

Question

MCQ▾

Given below steps of construct a quadrilateral ABCD where AB = 5.2 cm, BC = 4.0 cm, CD = 4.2 cm, AD = 3.3 cm and which of the following is a wrong step?

(P) Step 1: Draw AB = 5.2cm and construct

(Q) Step 2: With A as center and radius AD = 3.3 cm, cut off AD = 3.3 cm along AX.

(R) Step 3: Join BD. With D as center and radius DC = 4.2 cm, draw an arc.

(S) Step 4: With B as center and radius BC = 4.0 cm, draw an arc to cut the arc drawn in above step at C. Join BC, CD to obtain the required quadrilateral ABCD.

Choices

Choice (4)Response

a.

S

b.

P

c.

R

d.

Q