Mental Ability-Basic Algebra (NCO- Cyber Olympiad Class 9): Questions 1 - 7 of 101

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Question number: 1

» Mental Ability » Basic Algebra

MCQ▾

Question

The Value of x+1x(x>0,real) is ________.

Choices

Choice (4) Response

a.

Always an integer

b.

Greater than or equal to 2

c.

Always greater than 2

d.

Question does not provide sufficient data or is vague

Question number: 2

» Mental Ability » Basic Algebra

MCQ▾

Question

The Value of x+x2+1x is ________.

Choices

Choice (4) Response

a.

Always greater than 0

b.

Always Positive

c.

Negative or Positive

d.

All of the above

Question number: 3

» Mental Ability » Basic Algebra

MCQ▾

Question

The Value of x2+1x (X >0 ) is ________.

Choices

Choice (4) Response

a.

Always Greater than or equal to 1

b.

Always integer or equal to 0

c.

Always negative

d.

Question does not provide sufficient data or is vague

Question number: 4

» Mental Ability » Basic Algebra

MCQ▾

Question

The solution of the equations 5X4Y=12,4X+2Y=20 is

Choices

Choice (4) Response

a.

There is no solution

b.

X=8,Y=2

c.

X=0,Y=0

d.

X=4,Y=2

Question number: 5

» Mental Ability » Basic Algebra

MCQ▾

Question

When simplified and expressed with negative exponents, the expression (x+y)1(x1+y1) is equal to

Choices

Choice (4) Response

a.

x2+2x1y1+y2

b.

x2+y2

c.

x2+21x1y1+y2

d.

x1y1

Question number: 6

» Mental Ability » Basic Algebra

MCQ▾

Question

(a+1a)=3 , then (a3+1a3) equals

Choices

Choice (4) Response

a.

18

b.

1033

c.

77

d.

33

Question number: 7

» Mental Ability » Basic Algebra

MCQ▾

Question

When simplified and expressed with negative exponents, the expression (X+Y)1÷(X1+Y1) is equal to

Choices

Choice (4) Response

a.

XY(X+Y)2

b.

X1Y1

c.

X2+21X1Y1+Y2

d.

X2+Y2

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