230 + 230 + 230 + 230 =
  • a)
    8120
  • b)
    830 
  • c)
    232 
  • d)
    230 
  • e)
    226
Correct answer is 'C'. Can you explain this answer?

UPSC Question

By Balwinder Singh · Apr 16, 2020 ·UPSC
41 Answers
Saad Saad answered Nov 08, 2018
4 (2^30) = 2^2 ×2^30 = 2^32

Sneha Music answered Jul 24, 2020

Anushka Mehra answered May 28, 2020
I can't understand it

Nancy Redhu answered Jul 31, 2020

Rangam Kumarranga answered 3 weeks ago
2^30(1+1+1+1)=2^30(2^2)

=2^32
hence the option for that question is c

Deepa Choudhary answered Aug 17, 2020
Yes the correct option is C i.e 2^32 as 2^30+2^30+2^30+2^30=2^30×(1+1+1+1)=2^30×4
2^30×2^2= (2)^30+2=2^32..
Hope u understand it....

Sandeep Kumar answered Jul 02, 2020
4×(2^30)=2^2×2^30
= 2^32

* In multiplication if base are equal we can add powers

* In division if base are equal we can subtract the powers

example:

3^5/3^3 = 3^(5-3)= 3^2

Bhavishay Gujjar answered Jul 23, 2020
2^30(1+1+1+1)
=2^30*(4)
=2^30*(2*2)
=(2^30)*(2^2)
=2^32

Kumar Adit answered 2 weeks ago
Answer is 'B' because if base or exponent are same then add base and make exponent common for whole so answer would be 8 to the power 30.

Chhavi Tripathi answered Jun 21, 2020
Aap aise question kaha se late ho , please tell me.

Sher Singh answered Jul 19, 2020
2^30+2^30+2^30+2^30 = 4×2^30 = 2^2 × 2^30 = 2^32

Rachit Jaiswal answered 3 weeks ago
2^30 + 2^30 + 2^30 + 2^30

2^30(1+1) + 2^30(1+1)

2^30(2^1) + 2^30(2^1)

2^32

Ssssssss Ddd answered Jun 21, 2020
4(2^30)=2^2 * 2^30 =2^(30+2)= 2^32

Swapna Bathini answered Jul 30, 2020
4(2^30)=(2^2)(2^30)=2^2+30=2^32
when the bases are equal,we can add the powers(exponents)

Janvhi Bachhav answered Aug 29, 2020
How could this plz explain it

Ajs answered Aug 03, 2020
The ans is C

Prity Kumari answered Jul 08, 2020
2^30+2^30+2^30+2^30

2^30(1+1+1+1)

2^30×4

2^30×2^2 since, (a^m+a^n=a^m+n)

2^30+2

2^32 ans.

Anagha Devi Prasad answered Jun 21, 2020
4(2^30) = 2^2(2^30)=2^(2+30)=2^32

Shamitha Sivakumar answered 4 weeks ago
The answer is option (d)

Punam Pradhan answered Jul 29, 2020
2³⁰+2³⁰+2³⁰+2³⁰
= 2³⁰×( 1+1+1+1)
= 2³⁰×4
=2³⁰×2²
=2³²

Pragati Pathak answered Apr 30, 2020
How? plz find this answer..

Rakesh Quinton answered Jul 27, 2020
Is it not 'd' the right answer

Neeraj Barsiwal answered Jun 18, 2020
Vobdmas rule use there

Sidharth Gupta answered Mar 26, 2020
B is right one

Mohammad Sameer Ansari answered Aug 12, 2020
4×2^30=2^2×2^30=2^(2+30)=2^32

Saili Shende answered 4 weeks ago
=2^30(4)
=2^30(2^2)
=2^30+2
=2^32

Kuldeep Singhal answered Jul 22, 2020
4(2^30)=2^2.2^30=2^32...

Vijay Billu answered Jul 09, 2020
Both option b and c are correct .

Bhargavi Satish answered Aug 27, 2020
2^30×2^2
2^32

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