IMO- Mathematics Olympiad Class 8: Questions 423 - 430 of 1029

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Question number: 423

» Algebraic Expressions and Identities

MCQ▾

Question

The value of (32.012)2(22.012)275.25421.242 is________.

Choices

Choice (4) Response

a.

1

b.

10

c.

1000

d.

100

Question number: 424

» Algebraic Expressions and Identities

MCQ▾

Question

What must be subtracted from 2x5x to get x4+3x2+x+3 ?

Choices

Choice (4) Response

a.

2x5+x4+3x2+3

b.

2x5x4+3x23

c.

2x5x43x22x3

d.

x4+3x3x23x8

Question number: 425

» Algebraic Expressions and Identities

MCQ▾

Question

On multiplying 6x3 by 5x , we get product________.

Choices

Choice (4) Response

a.

45x3

b.

45x2

c.

30x4

d.

45x4

Question number: 426

» Algebraic Expressions and Identities

MCQ▾

Question

If 10x+5y=2 , then 2x+y is equal to________.

Choices

Choice (4) Response

a.

15

b.

25

c.

35

d.

45

Question number: 427

» Algebraic Expressions and Identities

MCQ▾

Question

If x1x=5 , then x2+1x2 is________.

Choices

Choice (4) Response

a.

2

b.

3

c.

1

d.

4

Question number: 428

» Algebraic Expressions and Identities

MCQ▾

Question

The quotient when (33mn2q4) is divided by (11mnq) is________.

Choices

Choice (4) Response

a.

nq3

b.

2nq3

c.

3nq3

d.

3q

Question number: 429

» Algebraic Expressions and Identities

MCQ▾

Question

If 1x=5 , find the value of x4+1x4 .

Choices

Choice (4) Response

a.

727

b.

772

c.

723

d.

725

Question number: 430

» Algebraic Expressions and Identities

MCQ▾

Question

What must be subtracted from 3a24ab+6b2+5 to get ab3 ?

Choices

Choice (4) Response

a.

2b2+b+2ab+2

b.

3a26b25ab+2

c.

3a2+6b25ab+8

d.

2b2b2ab+2

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