Exponents and Powers (IMO- Mathematics Olympiad Class 8): Questions 16 - 23 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: 16

» Exponents and Powers

MCQ▾

Question

The value of (2)3×5522×55 is________.

Choices

Choice (4) Response

a.

4

b.

5

c.

2

d.

1

Question number: 17

» Exponents and Powers

MCQ▾

Question

If xy=72 , then x2+y2x2y2 is________.

Choices

Choice (4) Response

a.

413

b.

541

c.

419

d.

5345

Question number: 18

» Exponents and Powers

MCQ▾

Question

The standard form of 12650000 is________.

Choices

Choice (4) Response

a.

1.265×106

b.

1.265×104

c.

1.265×107

d.

1.265×105

Question number: 19

» Exponents and Powers

MCQ▾

Question

The value of (7)2 is________.

Choices

Choice (4) Response

a.

349

b.

49

c.

149

d.

19

Question number: 20

» Exponents and Powers

MCQ▾

Question

If 2(xy)=8 and 2(x+y)=64 , then x is equal to________.

Choices

Choice (4) Response

a.

32

b.

52

c.

92

d.

12

Question number: 21

» Exponents and Powers

MCQ▾

Question

The standard form of 0.00005 is________.

Choices

Choice (4) Response

a.

5×106

b.

5×105

c.

5×107

d.

5×104

Question number: 22

» Exponents and Powers

MCQ▾

Question

Given that 100.90=x,100.45=y and xz=y2 , then the value of z is (approximately) ________.

Choices

Choice (4) Response

a.

1.23

b.

1.21

c.

1.99

d.

1.00

Question number: 23

» Exponents and Powers

MCQ▾

Question

If xy=54 , then x2+y2x2y2 is________.

Choices

Choice (4) Response

a.

4142

b.

413

c.

419

d.

941

Sign In