# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 317 - 321 of 1040

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## Question number: 317

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MCQ▾

### Question

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 number: 318

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MCQ▾

### Question

ABCD is rhombus, If, then is________.

### Choices

Choice (4) Response

a.

120

b.

50

c.

40

d.

30

## Question number: 319

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MCQ▾

### Question

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 number: 320

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MCQ▾

### Question

Given below steps of construct a quadrilateral PQRS where PQ = 5.0 cm, QR = 3.0 cm, RS = 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 RS = 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, RS to obtain the required quadrilateral PQRS.

### Choices

Choice (4) Response

a.

R

b.

p

c.

S

d.

Q

## Question number: 321

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MCQ▾

### Question

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