# IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 482 - 487 of 968

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## Question number: 482

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MCQ▾

### Question

Two dice are thrown simultaneously. The probability of getting a doublet or a total of 4 is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 483

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MCQ▾

### Question

The king, queen and jack of Spades are removed from a deck of 52 playing cards and then well-shuffled. One card is selected from the remaining cards. The probability of getting a Spades is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 484

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MCQ▾

### Question

The average of 15 results is 50. If the average of the first six results is 82 and that of the last six is 62, then the sixth result is ________

### Choices

Choice (4) Response

a.

57

b.

60

c.

58

d.

59

## Question number: 485

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MCQ▾

### Question

The king, queen and jack of clubs are removed from a deck of 52 playing cards and then well-shuffled. One card is selected from the remaining cards. The probability of getting a ‘8’ of black color is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 486

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MCQ▾

### Question

Find the area of the quadrilateral, the coordinates of whose angular points taken in order are.

### Choices

Choice (4) Response

a.

184

b.

115

c.

146

d.

712

## Question number: 487

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MCQ▾

### Question

The mean of 10 observations is. if each observation is multiplied by 4, then what is the new mean?

### Choices

Choice (4) Response

a.

60

b.

50

c.

70

d.

30

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