Mathematics-Exponents and Powers [NSTSE (National Science Talent Search Exam- Unified Council) Class 7]: Questions 1 - 14 of 80

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Question 1

Exponents and Powers
Edit

Question

MCQ▾

Simplify:

Choices

Choice (4)Response
a.
b.7
c.
d.

Question 2

Exponents and Powers
Edit

Question

MCQ▾

Simplify:

Choices

Choice (4)Response
a.
b.
c.
d.None of the above

Question 3

Exponents and Powers
Edit

Question

MCQ▾

Which of the following statement is false?

Choices

Choice (4)Response
a., if n is an odd integer
b.For any number a,
c.If then n = 2
d.All of the above

Question 4

Exponents and Powers
Edit

Question

MCQ▾

The rationalizing factor of is

Choices

Choice (4)Response
a.
b.
c.
d.

Question 5

Exponents and Powers
Edit

Question

MCQ▾

The value of is

Choices

Choice (4)Response
a.- 25
b.- 75
c.1
d.0

Question 6

Exponents and Powers
Edit

Question

MCQ▾

Simplify

Choices

Choice (4)Response
a.2
b.1
c.4
d.

Question 7

Exponents and Powers
Edit

Question

MCQ▾

The rationalizing factor of is

Choices

Choice (4)Response
a.
b.
c.
d.

Question 8

Exponents and Powers
Edit

Question

MCQ▾

equals to

Choices

Choice (4)Response
a.3
b.1
c.27
d.

Question 9

Exponents and Powers
Edit

Question

MCQ▾

The value of is

Choices

Choice (4)Response
a.15625
b.25
c.625
d.30

Question 10

Exponents and Powers
Edit

Question

MCQ▾

Simplify:

Choices

Choice (4)Response
a.
b.
c.
d.None of the above

Question 11

Exponents and Powers
Edit

Question

MCQ▾

The sum of the powers of the prime factors in is

Choices

Choice (4)Response
a.6
b.9
c.11
d.7

Question 12

Exponents and Powers
Edit

Question

MCQ▾

________.

Choices

Choice (4)Response
a.
b.
c.
d.

Question 13

Exponents and Powers
Edit

Question

MCQ▾

By what number should be divided so that the quotient may be ?

Choices

Choice (4)Response
a.
b.- 3
c.
d.

Question 14

Exponents and Powers
Edit

Question

MCQ▾

If then x =

Choices

Choice (4)Response
a.12
b.- 15
c.20
d.10