# IMO Level 1- Mathematics Olympiad (SOF) Class 2: Questions 265 - 273 of 578

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## Question number: 265

Edit
MCQ▾

### Question

Complete the number series given: 11,21,31,41,51…

### Choices

Choice (4)Response

a.

51

b.

71

c.

21

d.

61

## Question number: 266

Edit
MCQ▾

### Question

Complete the number series given: 120,130,140,150…

### Choices

Choice (4)Response

a.

180

b.

160

c.

170

d.

190

## Question number: 267

Edit
MCQ▾

### Question

Complete the number series given: 15,30,45,60,75…

### Choices

Choice (4)Response

a.

97

b.

90

c.

95

d.

98

## Question number: 268

Edit
MCQ▾

### Question

Complete the number series given: 101,201,301,401,501…

### Choices

Choice (4)Response

a.

901

b.

601

c.

701

d.

801

## Question number: 269

Edit
MCQ▾

### Question

Complete the number series given: 51,151,251,351,451…

### Choices

Choice (4)Response

a.

651

b.

551

c.

851

d.

751

## Question number: 270

Edit
MCQ▾

### Question

Complete the number series given: …. . …, 300,285,270,255

### Choices

Choice (4)Response

a.

305

b.

290

c.

315

d.

240

## Question number: 271

Edit
MCQ▾

### Question

Complete the number series given: 340,350,360,370,380…

### Choices

Choice (4)Response

a.

320

b.

380

c.

340

d.

390

## Question number: 272

Edit
MCQ▾

### Question

Complete the number series given: 12,24,36,48,60….

### Choices

Choice (4)Response

a.

72

b.

76

c.

74

d.

68

## Question number: 273

Edit
MCQ▾

### Question

Find the next figure to complete the given figure pattern below.

……….

### Choices

Choice (4)Response

a.

b.

c.

None of the above

d.

Question does not provide sufficient data or is vague

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