IMO- Mathematics Olympiad Class 6: Questions 204 - 210 of 1049

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Question number: 204

» Playing With Numbers

MCQ▾

Question

The number (11, 23) are

Choices

Choice (4) Response

a.

Co-prime numbers

b.

Prime and co-prime

c.

Prime numbers

d.

All of the above

Question number: 205

» Number Systems

MCQ▾

Question

Find the sum of the given expression.

(155)+(20)14+(133)+(190)+170(73)

Choices

Choice (4) Response

a.

- 35

b.

48

c.

35

d.

- 89

Question number: 206

» Playing With Numbers

MCQ▾

Question

The least number of square tiles that will be needed to cover a room of 165 m by 45 m is

Choices

Choice (4) Response

a.

41 tiles

b.

23 tiles

c.

37 tile

d.

33 tiles

Question number: 207

» Number Systems

MCQ▾

Question

Subtract the number obtained by reversing the digits of the number 65302 from the number obtained by interchanging the digits in the ten’s place and the hundred’s place of the same number, we get________.

Choices

Choice (4) Response

a.

95388

b.

-64746

c.

76446

d.

44676

Question number: 208

» Number Systems

MCQ▾

Question

Which one is correct?

Choices

Choice (4) Response

a.

37<99<0<2

b.

99<37<0<2

c.

99<0<2<37

d.

37<0<2<99

Question number: 209

» Playing With Numbers

MCQ▾

Question

What is the least number to be subtracted from 1936 so that when divided by 9, 10 and 15 it will leave the same remainder in each case?

Choices

Choice (4) Response

a.

40

b.

44

c.

38

d.

42

Question number: 210

» Number Systems

MCQ▾

Question

ABC is a three digit number in which the digit A is greater than the digit B and C. If the difference between ABC and CBA is 297 and the difference between ABC and BAC is 450, find all possible three digit numbers ABC.

Choices

Choice (4) Response

a.

724

b.

946

c.

835

d.

All a. , b. and c. are correct

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