Interested to Buy Any Domain ? << Click Here >> for more details...
If one person sends the e-mail to two friends, asking each
of them to copy the mail and send it to two of their
friends, those in turn send it to two of their friends and
so on.
How many e-mails would have been sent by the time it did 30
sets?
- 2 Answers
- 6689 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / guest
2147483646
First person sent the mail to 2 persons. Those 2 sent the
mail to 2 persons each, total 4 persons. Now, those 4 person
sent mail to total 8 persons, then 8 to 16 persons, 16 to 32
persons and so on.... Hence, it a series of 2, 4, 8, 16, 32
upto 30 numbers
It is a Geometric series with common ratio 2 and first
number is also 2. Summation of such series is given by A *
(Rn - 1) / (R - 1) where
A = First term
R = Common Ratio
n = total numbers
So total number of times mail sent by the time it did 30 sets
= 2 * (230 - 1) / (2 - 1)
= 2 * (1073741824 - 1)
= 2 * 1073741823
= 2147483646
| Is This Answer Correct ? | 8 Yes | 1 No |
divide a line segment by using compass only.mind u , marking arcs on both side can be done by using compas only but u dont have ruler to join them.
A worker earns a 5% raise. A year later, the worker receives a 2.5% cut in pay, & now his salary is Rs. 22702.68 What was his salary to begin with?
Annie, Bunnie, Candy and Dina visited Edy on 14th February. 1. The time of each visit was as follows: - Annie at 8:00 - Bunnie at 9:00 - Candy at 10:00 - Dina at 11:00 Each time mentioned above may be either AM or PM. 2. Candy did not visit Edy between Bunnie and Dina. 3. At least one female visited Edy between Annie and Bunnie. 4. Annie did not visit Edy before both Candy and Dina. Can you tell at what time did they individually visit Edy?
what makes a road as abroad?
P pages read in d mins after day p+1 pages read in d+1 mins last day 379 pages done in 317 mins find p+4
There are 25 horses and only five tracks in a race. How do you find the second coming horse of all the 25 horses, provided there is no stop clock? (obviously, a horse cannot participate more than once in a race).
28 Answers Amazon, Athena Health Care, Bloomberg, Citrix, Dreamz Group, Global Analytics, Juniper Networks, Microsoft, Oracle, Synopsis, UC Berkeley,
Three friends went to hotel for breakfast . After having breakfast total bill was Rs 25 . Each one contributed Rs 10. So total was Rs 30 . 30 is paid. waiter gave Rs 5 back to them . Three friend gave Rs 2 tips to waiter . From remaining Rs 3 each one took one rupee. As each one contributed ten . And each friend recieved one rupee back. Means each one had breakfast in nine rupee. So three friend had breakfast in 9+9+9=27. And Rs 2 is given to tips to waiter. So total money for breakfast for three friend was 27+2=29. Where is remaining one rupee?
Karan bought a little box of midget matches, each one inch in length. He found that he could arrange them all in the form of a triangle whose area was just as many square inches as there were matches. He then used up six of the matches, and found that with the remainder he could again construct another triangle whose area was just as many square inches as there were matches. And using another six matches he could again do precisely the same. How many matches were there in the box originally? Note that the match-box can hold maximum of 50 matches.
In the town called Alibaug, the following facts are true: ? No two inhabitants have exactly the same number of hairs. ? No inhabitants has exactly 2025 hairs. ? There are more inhabitants than there are hairs on the head of any one inhabitants. What is the largest possible number of the inhabitants of Alibaug?
Substitute digits for the letters to make the following Division true Y F Y ----------- A Y | N E L L Y | N L Y ---------------- P P L P N H ---------- N L Y N L Y ---------- 0 0 0 Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one mapping between digits and letters. e.g. if you substitute 3 for the letter N, no other letter can be 3 and all other N in the puzzle must be 3.
three people given 25 rupee each to there servent to purchase a book.book seeler return 5 rs. then servent keep 2 rupee and return 1 rs each,now they spend 24 rs eachand servent have 2 rs so totel is 74 rs now where is 1 rupee?
A,B,C,D are four teams.Three guys x,y,z comment about matches between four teams , X said either A or B will win Y says A will never win Z says C or B will not win only one of them is correct then who won the match.
English 
