Interested to Buy Any Domain ? << Click Here >> for more details...
units digit in expansion os 2 raised to 51 is:
2 4 6 8
- 11 Answers
- 54709 Views
- Cap Gemini, KPIT, Lokesh, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / swapnil
2 power 1 = ends with 2
2 power 2 = ends with 4
2 power 3 = ends with 8
2 power 4 = ends with 6
------------------------------
2 power 5 = ends with 2
then this cycle continues, so we can conclude that,
2 power 49 = ends with 2
2 power 50 = ends with 4
2 power 51 = ends with 8
| Is This Answer Correct ? | 174 Yes | 11 No |
Answer / abhijeet gupta
8
beacause 2 pow 1=2
2 pow 2 =4
2 pow 3 =8
2 pow 4 =16 end with 6
2 pow 5 =32 end with 2
-------------------------------------------------------------
so 2 pow 49 =end with 2
50 =end with 4
51=end with 8
| Is This Answer Correct ? | 63 Yes | 3 No |
Answer / vasanth raj
2 pow 1=2,
2 pow 2=4,
2 pow 3=8,
2 pow 4=16 (6);
2 pow 51==== so 51/4= remainder 3......so....3rd one
aplicable...2 pow 3=8;so answer 8.....
| Is This Answer Correct ? | 43 Yes | 3 No |
Answer / vijay chouhan
Here we take 2^51; according to formula(see Abhijit Guha quantitute aptitute) when power is divided by 4 and give reminder that is non zero, take reminder as power of last digit of given number;
2^51; 51%4=3;
so 2^3=8;
ANS=8
| Is This Answer Correct ? | 25 Yes | 2 No |
Answer / pradip dharam
See Unit(2^5) = 2
51 / 5 = 10 and 1 rem
Unit(2^10) = 4
4*2=8
| Is This Answer Correct ? | 17 Yes | 5 No |
Answer / mahesh
2^51=?
unit digit values 2
2^1=2
2^2=4
2^3=8
2^4=6
.
.
.2^51=
51/4=rem(3)
2^3=8
so ans 8
| Is This Answer Correct ? | 6 Yes | 0 No |
Answer / vinay rajesh
2^51=2^25*2^26
2^25=2^5^5
2^26=2^5^5*2
2^5^5 ends with 2 as 2^5ends wirh 2 and when raised 5 times gives 2 so
2^5^5*2 gives 2*2
finally 2*2*2=8
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / debadatta patra
2^1=2
2^2=4
2^3=8
2^4=16
this sequence repeat again and again so we know that after
every four times again unit digit repeat as 2,4,8,16 so
correct answer is 2 here
| Is This Answer Correct ? | 8 Yes | 28 No |
A store owner is packing small radios into larger boxes that measure 25 in. by 42 in. by 60 in. If the measurement of each radio is 7 in. by 6 in. by 5 in., then how many radios can be placed in the box?
A hotel has 10 storeys. Which floor is above the floor below the floor, below the floor above the floor, below the floor above the fifth.
(root 200) - (root 50) =?
4 Answers Citicorp, COSL, Wipro,
Alok and Bhanu play the following min-max game. Given the expression N = 9 + X + Y – Z where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be
1. 2 containers labeled A and B are filled with red and blue marbles in given quantities: - Container RED BLUE A 6 4 B 60 40 Each container is shaken vigorously. After choosing 1 of the container, without looking, draw out a marble. From which container you have the max probability of choosing a blue marble?
my ouestion is current affairs
Given that a,b,c,d,e each represent one of the digits between 1-9 and that the following multiplication holds a b c d e 4 ---------- e d c b a What digit does e represent a) 4 b) 6 c) 7 d) 8 e) none
8 Answers HCL, Ramco, Sutherland,
Dr. Martin A. Tidball, along with colleagues at two universities, are working on uncovering the mysteries of glucose uptake, a discovery of new details about active ATP transport, and a drug to enhance facilitated diffusion. are working hard to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhance facilitated diffusion with the help of a drug is working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug is working to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhancing facilitated diffusion with the help of a drug are working on uncovering the mysteries of glucose uptake, a discovery of new details about active ATP transport, and a drug to enhance facilitated diffusion
There is a safe with a 5 digit number as the key. The 4th digit is 4 greater than second digit, while 3rd digit is 3 less than 2nd digit. The 1st digit is thrice the last digit. There are 3 pairs whose sum is 11. Find the number.
Dear Sir/ Madam, Kindly send me the model question answers for RRB-Technician Signal(Physics/Maths) to saranya67veena@gmail.com
A man walks around a rectangle. The time taken by him in travelling the length is twice as taken in travelling the breadth of the rectangle. If the perimeter of the rectangle is 300 mts, what is the area of the rectangle?
Find the product of the prime numbers between 1-20
English 
