IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 1028 - 1034 of 1040

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Question number: 1028

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MCQ▾

Question

A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn random from the bag. The probability that all of them are red is,

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1029

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MCQ▾

Question

Which of the following statement is true for square numbers?

Choices

Choice (4)Response

a.

Square numbers are always positive

b.

Square number can only have even number of zeroes at the end

c.

Both a. and b. are correct

d.

None of the above

Question number: 1030

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MCQ▾

Question

A bag contains 50p, 25p, 10p coins in the ratio 5: 6: 10, amounting to Rs. 500. Find the total number of coins

Choices

Choice (4)Response

a.

3800

b.

1000

c.

2100

d.

1330

Question number: 1031

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MCQ▾

Question

When a certain number is multiplied by 15, the product consists entirely of fives. The smallest such number is ________

Choices

Choice (4)Response

a.

37

b.

24

c.

41

d.

32

Question number: 1032

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MCQ▾

Question

Three numbers are in the ratio of 2: 3: 4. The sum of their cubes is 50688. The numbers are ________.

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1033

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MCQ▾

Question

The area of a square field is sq. m. the length of each side of the field is________.

Choices

Choice (4)Response

a.

11.92

b.

22.3

c.

14.07

d.

12.03

Question number: 1034

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MCQ▾

Question

If , then x is equal to ________.

Choices

Choice (4)Response

a.

2

b.

6

c.

4

d.

5

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