• This is an assessment test.
  • To draw maximum benefit, study the concepts for the topic concerned.
  • Kindly take the tests in this series with a pre-defined schedule.

Number System: Exponent Test-3

Congratulations - you have completed Number System: Exponent Test-3.You scored %%SCORE%% out of %%TOTAL%%.You correct answer percentage: %%PERCENTAGE%% .Your performance has been rated as %%RATING%%
Your answers are highlighted below.
Question 1
Which of the following expressions is equal to 218 ?
A
(23)6
B
29+2
C
2326
D
9x26
Question 1 Explanation: 
The correct expression in this case is option A.
xmn equals to (xm)n
Question 2
What will be the value of P= 4a+4a+4a+4a
A
16a
B
44a
C
4a+1
D
None
Question 2 Explanation: 
= 4a+4a+4a+4a
= 4a(1+1+1+1)
= 4a x ( 4)
= 4a+1
Question 3
If q = {y(y2)4} / y5 when y is greater than 0 then what would be the exponent of y.
A
2
B
3
C
4
D
5
Question 3 Explanation: 
Since the question is to find the exponents of y in {y(y2)4} / y5
Therefore ={y(y2)4} / y5 ={y x y8} / y5
={y x y8} / y5 = { y9} / y5 = y4
So the exponent of y is 4
Question 4
If a and b are not equal to 0, then a18b9 must be
A
Positive
B
Negative
C
An integer
D
both A or B
Question 4 Explanation: 
If a is negative and b is positive then the result will be positive
If b is negative and a is positive then the result will be negative
So we will consider both the cases and therefore the number can be positive of negative
So the right answer is D
Question 5
If a and b are positive integers and a4 +b5 = 259, then value of a + b =?
A
7
B
9
C
6
D
5
Question 5 Explanation: 
We have a4 +b5 = 259
So from option A = 7 so the value of A and B(1,6)(2,5)(3,4) and vice-versa
but no one option satisfy the condition so option a is rejected
For option B i.e.9 the pairs are (1,8), (2,6), (3,5), (4,4) and vice versa
For option C i.e. for 6 the pairs are (1,5), (2,4), (3,3) and vice versa
For option D i.e. for 5 the pairs are (1,4), (2,3),  and vice versa
See 24 +35 = 259
So the right answer is 5 option D
Once you are finished, click the button below. Any items you have not completed will be marked incorrect. Get Results
There are 5 questions to complete.
List
Return
Shaded items are complete.
12345
End
Return

Want to explore more Number System Tests?

Explore Our Number System Tests

Join our Free TELEGRAM GROUP for exclusive content and updates

Rsz 1rsz Close Img

Join Our Newsletter

Get the latest updates from our side, including offers and free live updates, on email.

Rsz Undraw Envelope N8lc Smal
Rsz 1rsz Close Img
Free Live Webinar Update