Algebraic Expressions and Identities (IMO- Mathematics Olympiad Class 8): Questions 53 - 60 of 63

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Question number: 53

» 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: 54

» 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: 55

» 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: 56

» 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: 57

» 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: 58

» 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

Question number: 59

» Algebraic Expressions and Identities

MCQ▾

Question

The perimeter of a triangle is 5p22p+1 and two of its sides are p2p+1 and 2p22p+3 . Find the third side of the triangle.

Choices

Choice (4) Response

a.

5p22p+1

b.

2p22p1

c.

2p2+2p+3

d.

2p2+p3

Question number: 60

» Algebraic Expressions and Identities

MCQ▾

Question

Evaluate (127843233)2127843238×1278432328

Choices

Choice (4) Response

a.

25

b.

127843238

c.

5

d.

127843225

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