IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 317 - 321 of 1042

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Question 317

Question

MCQ▾

30 % of 140 = x % of 420, then the value of x is________.

Choices

Choice (4)Response

a.

10

b.

30

c.

2

d.

5

Question 318

Question

MCQ▾

ABCD is rhombus and P is the point where its two diagonals meet, then if , then is________.

Choices

Choice (4)Response

a.

120

b.

50

c.

40

d.

30

Question 319

Question

MCQ▾

30 % of 300 = x % of 150, then the value of x is________.

Choices

Choice (4)Response

a.

50

b.

30

c.

60

d.

10

Question 320

Question

MCQ▾

Given below steps of construct a quadrilateral PQRS where PQ = 5.0 cm, QR = 3.0 cm, ₹ = 4.2 cm, SP = 3.3 cm and which of the following is a wrong step?

(P) Step 1: Draw PQ = 5.0 cm and construct

(Q) Step 2: With P as center and radius SP = 3.3 cm, cut off SP = 3.3 cm along PX.

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

(S) Step 4: With Q as center and radius QR = 3.0 cm, draw an arc to cut the arc drawn in above step at R. Join QR, ₹ to obtain the required quadrilateral PQRS.

Choices

Choice (4)Response

a.

R

b.

p

c.

S

d.

Q

Question 321

Question

MCQ▾

In a parallelogram ABCD, if , then the others angles are________.

Choices

Choice (4)Response

a.

45 , 125 , 135

b.

45 , 115 , 115

c.

35 , 145 , 145

d.

35 , 135 , 135