Exponents and Powers (IMO- Mathematics Olympiad Class 8): Questions 1 - 9 of 61

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1029 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 450.00 or

Question number: 1

» Exponents and Powers

MCQ▾

Question

Which of the following values are equal?

(1) 15 (2) 50 (3) 05 (4) 51

Choices

Choice (4) Response

a.

1 and 2

b.

2 and 3

c.

1 and 3

d.

1 and 4

Question number: 2

» Exponents and Powers

MCQ▾

Question

The value of x2xx(xx) when x=2 is________.

Choices

Choice (4) Response

a.

21

b.

24

c.

20

d.

25

Question number: 3

» Exponents and Powers

MCQ▾

Question

If 7(xy)=343 and 7(x+y)=2401 , then x is equal to________.

Choices

Choice (4) Response

a.

52

b.

92

c.

12

d.

72

Question number: 4

» Exponents and Powers

MCQ▾

Question

The value of (1331)23 is ________.

Choices

Choice (4) Response

a.

1120

b.

1122

c.

1111

d.

1121

Question number: 5

» Exponents and Powers

MCQ▾

Question

Number of prime factors in (729)25×(4125)35×(605)15 is

Choices

Choice (4) Response

a.

3

b.

4

c.

2

d.

6

Question number: 6

» Exponents and Powers

MCQ▾

Question

If 872×7x2×7x2=42 , then the value of x is________.

Choices

Choice (4) Response

a.

1

b.

3

c.

4

d.

2

Question number: 7

» Exponents and Powers

MCQ▾

Question

If xy=32 , then x2y2x2+y2 is________.

Choices

Choice (4) Response

a.

53

b.

513

c.

19

d.

135

Question number: 8

» Exponents and Powers

MCQ▾

Question

The value of x+3(xx) when x=1 is________.

Choices

Choice (4) Response

a.

4

b.

1

c.

2

d.

5

Question number: 9

» Exponents and Powers

MCQ▾

Question

The standard form of 0.003445 is________.

Choices

Choice (4) Response

a.

3.455×104

b.

3.455×102

c.

3.445×103

d.

3.445×105

Sign In