# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 315 - 320 of 1040

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## Question number: 315

Edit
MCQ▾

### Question

Four angles of a quadrilateral are in the ratio 3: 6: 9: 12. The smallest angle is________.

### Choices

Choice (4)Response

a.

20

b.

10

c.

36

d.

50

## Question number: 316

Edit
Match List-Ⅰ List-Ⅱ▾

### Question

Match the following.

List-Ⅰ (List of Geomertic Shapes)List-Ⅱ (Characteristic of Shapes)

(A)

Trapezoid

(i)

Diagonals are perpendicular

(B)

Rhombus

(ii)

Diagonals bisect each other

(C)

Parallelogram

(iii)

Diagonals are congruent

### Choices

Choice (4)Response
• (A)
• (B)
• (C)

a.

• (ii)
• (iii)
• (i)

b.

• (iii)
• (i)
• (ii)

c.

• (ii)
• (i)
• (iii)

d.

All of the above

## Question number: 317

Edit
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

Edit
MCQ▾

### Question

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 number: 319

Edit
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

Edit
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

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