If you started a business in which you earned Rs.1 on the
first day, Rs.3 on the second day, Rs.5 on the third day,
Rs.7 on the fourth day, & so on.
How much would you have earned with this business after 50
years (assuming there are exactly 365 days in every year)?
- 7 Answers
- 22279 Views
- Infosys, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / genius
the ans is 333062500
50 yrs = 50 * 365 = 18250 days
the total earning=1+3+5+7+.......+n
where n=18250
so the sum of arithmetic progression is given by
s= n/2(2a+(n-1)d)
where
s = sum of progression
n = number of terms
a = value of first term
d = difference between 2 terms
so s=(18250/2)(2*1+18249*2)
which gives s=333062500
| Is This Answer Correct ? | 60 Yes | 7 No |
Answer / abhishek gupta
The correct ans. is 333062500
It's given that we work for 50 years, i.e., 50*365= 18250 days.
if we earn Rs.1 on the first day, Rs.3 on the second day,
Rs.5 on the third day & Rs.7 on the fourth day, means we
square the total no. of days to get the total money we
earned. E.g.
In 1 day, we earn Re.1 (squaring 1)
In 2 days, we earn Rs.3+1 (squaring 2) & so on......
So, squaring 18250 , the ans. is 333062500, i.e., we earn
Rs. 333062500 in 50 years= 18250 days.
My ans. has the shortest explanation & cud be called the
best ans. of all the above.
| Is This Answer Correct ? | 22 Yes | 3 No |
Answer / vinod gupta
Let n be the no. of days
Then (n*2)-1 gives us the amount that you earn for that many
days.
Since we need to find for 50 years and each year has 365 days
Thus, n = (365*50) = 18250
Therefore on 50 years you get,
(18250*2)-1 = 36500-1 = 36499
This is the amount you earn on 50 years.
But we need to find the total amount that we would earn
after 50 years.
For this we need to add the amount from day 1 till 50 years
i.e; 18250
Thus we have,
1 + 3 + 5 + 7 + 9 + ... + 36499 = 333062500
Thus after 50 years we have Rs.333,062,500
| Is This Answer Correct ? | 13 Yes | 1 No |
Answer / siddheshwar mali
he ans is 333062500
50 yrs = 50 * 365 = 18250 days
the total earning=1+3+5+7+.......+n
where n=18250
so the sum of arithmetic progression is given by
s= n/2(2a+(n-1)d)
where
s = sum of progression
n = number of terms
a = value of first term
d = difference between 2 terms
so s=(18250/2)(2*1+18249*2)
which gives s=333062500
Thanks for Marking this Answer
Answer / abhishek gupta
The correct ans. is 333062500
It's given that we work for 50 years, i.e., 50*365= 18250 days.
if we earn Rs.1 on the first day, Rs.3 on the second day,
Rs.5 on the third day & Rs.7 on the fourth day, means we
square the total no. of days to get the total money we
earned. E.g.
In 1 day, we earn Re.1 (squaring 1)
In 2 days, we earn Rs.3+1 (squaring 2) & so on......
So, squaring 18250 , the ans. is 333062500, i.e., we earn
Rs. 333062500 in 50 years= 18250 days.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / lava
365*50=18250
sum of n odd no =npwr 2
1+2+3+....upto 18250 terms
so 18250pwr 2=333062500
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / ranjith naidu
let us consider first for 10 days = rs.19=x
next for 20 days =rs.39
and so on
it means for every 10 days itis x+20
in next step x will change that is now x=39
and so on
now in 50 years it will be
((50*365*19)/10)+20)=rs.34695
ans:rs 34695
| Is This Answer Correct ? | 6 Yes | 21 No |
Answer / navpreet singh
50 * 365 = 18250 days
(18250 * 2) - 1 = 36499
| Is This Answer Correct ? | 1 Yes | 16 No |
Find a number which ends with digit 2 such that when you cut this last digit and paste it in the front of the number, the new number value is double that of original.
You are seat in one room having switch board containing 3 switchs & its connection to bulb in another room (only one is right connection).terms- you can turn on max 2 buttons and once you can go to see the answer which is right one?
A number of 9 digits has the following properties: ? The number comprising the leftmost two digits is divisible by 2, that comprising the leftmost three digits is divisible by 3, the leftmost four by 4, the leftmost five by 5, and so on for the nine digits of the number i.e. the number formed from the first n digits is divisible by n, 2<=n<=9. ? Each digit in the number is different i.e. no digits are repeated. ? The digit 0 does not occur in the number i.e. it is comprised only of the digits 1-9 in some order. Find the number.
10 Answers Citrix, HM Solutions, Wipro,
Among 12 identical looking golf balls there is one that is defective in weight. It is either heavier or lighter than the standard one. You have a balance. You can only weigh 3 times to find out which one is defective and whether it is heavier or lighter.
Please convert 13 LETTERS- "FTOGUNIROIYWA" INTO THREE WORDS RELATED TO LOVE.?
Ship is 180 miles away from shore. At that time a plane started from shore to pass some information to the ship with 10 times velocity of ship's velocity. At what distance from shore they will meat?
Consider a chessboard with a single Rook. A Rook can move any number of square sideways/forward, but not diagonally. What is the minimum number of moves the Rook needs to make, in order to pass over all the squares on the chessboard and return to the original position?
A rich man died. In his will, he has divided his gold coins among his 5 sons, 5 daughters and a manager. According to his will: First give one coin to manager. 1/5th of the remaining to the elder son. Now give one coin to the manager and 1/5th of the remaining to second son and so on..... After giving coins to 5th son, divided the remaining coins among five daughters equally. All should get full coins. Find the minimum number of coins he has?
4. There are five caps , 3 black and 2 white. three persons chander, sunder and maninder are standing one behind the other in a queue. the first person in the queue is chanbder and the last person is maninder . 3 caps rfrom the lot of fivce is taken and put on their heads. Maninder can see what the other two standing in front are wearing . sunder can see what chander is wearing. None of them can turn around and see what the person standing behind is wearing , they do not know the color of cap what they themselves are wearing . John comes and asks maninder,"what is the color of the cap your are wearing?", Maninder can see what sunder and chander are wearing, and based on that he says he doesn't know. sunder has over heard that answer. Now john asks sunder" what is the colour of the cap you are wearing". sunder can see chander and he has heard what maninder has said, and based on that he says he doesn't know. chander has overheard both sunder and maninder. so when john asks chander the same question, he tells the correct answer. What is the colour of the cap that chander is weaRing ? Please write in brief how did you reach to that conclusion.
7 Answers 3D PLM, College School Exams Tests,
500 men are arranged in an array of 10 rows and 50 columns according to their heights. Tallest among each row of all are asked to come out. And the shortest among them is A. Similarly after resuming them to their original positions, the shortest among each column are asked to come out. And the tallest among them is B. Now who is taller A or B ?
A man went into a fast food restaurant and ate a meal costing Rs. 105, giving the accountant a Rs. 500 note. He kept the change, came back a few minutes later and had some food packed for his girl friend. He gave the accountant a Rs. 100 note and received Rs. 20 in change. Later the bank told the accountant that both the Rs. 500 and the Rs. 100 notes were counterfeit. How much money did the restaurant lose? Ignore the profit of the food restaurant.
One of the four people - Mr. Clinton, his wife Monika, their son Mandy and their daughter Cindy - is a singer and another is a dancer. Mr. Clinton is older than his wife and Mady is older than his sister. 1. If the singer and the dancer are the same sex, then the dancer is older than the singer. 2. If neither the singer nor the dancer is the parent of the other, then the singer is older than the dancer. 3. If the singer is a man, then the singer and the dancer are the same age. 4. If the singer and the dancer are of opposite sex then the man is older than the woman. 5. If the dancer is a woman, then the dancer is older than the singer. Whose occupation do you know? And what is his/her occupation?
English 
