There is a school with 100 students and correspondingly 100 lockers, all of which start off closed. The first student opens every locker and the second students closes every other locker starting with the second (2,4,6...etc..) . The 3rd student changes the state of the lockers numbered (3,6,9.. etc.). The fourth student changes the state of the lockers numbered (4,8,12.. etc..).. This continues until all the 100 students passes along the lockers.. when all the 100 student is done which locker is closed and which locker is in open condition?
- 6 Answers
- 17198 Views
- TCS, Zoho, I also Faced
- E-Mail Answers
Answer Posted / serverx
locker 1
| Is This Answer Correct ? | 28 Yes | 17 No |
Post New Answer View All Answers
The cost of one pencil, two pens and four erasers is Rs.22 while the cost of five pencils, four pens and two erasers is Rs.32.How much will three pencils, three pens and three erasers cost?
. Which of the following is not a VSAM dataset. a. KSDS b. RRDS c. LSDS d. ESDS
If 12 box containers require 18 feet of wall space, how many feet of wall space will 30 box containers require?
Ram spends half of his salary on household expenses, quarter for rent, 1/5th for medical expenses and the remaining he deposits in the bank. If his monthly deposits in the bank is Rs 50, what is his monthly salary ?
Find the hypotaneous of a right angle isoceles triangle whose area is 50.
The sum of the digits of a two digit number is 8. When 18 is added to the number, the digits are reversed. the number?
Imagine 4 persons A,B,C,D.(It is a strength determining game). A found it hard,but could pull 'c' and 'd' to his side. AC and BD pairs on opposite sides found themselves equally balanced. When A and B exchanged their positions to form pairs AD and BC ,BC pair could win and pull AD to their side.Order the 4 persons in Ascending order according to their strengths.
Three years ago my uncle offered me a used keyboard for Rs. 1024. A year later he offered me the same for Rs. 640 and last year he wanted Rs. 400 and now he is willing to sell it to me for Rs. 250. But I have decided to buy it when he reduces the price next time. If he is constantly reducing its price, at what price will he offer the keyboard to me next?
A shopkeeper bought a watch for Rs.400 and sold it for Rs.500.What is his profit percentage?
A person needs 6 steps to cover a distance of one slab. if he increases his foot length(step length) by 3 inches he needs only 5 steps to cover the slabs length. what is the length of the each slab.
A lorry starts from Banglore to Mysore at 6.00 A.M,7.00am.8.00 am.....10 pm. Similarly one another starts from Mysore to Banglore at 6.00 am,7.00 am, 8.00 am.....10.00pm. A lorry takes 9 hours to travel from Banglore to Mysore and vice versa. A lorry which had started at 6.00pm will cross how many lorries.
If the letters of the word "rachit" are arranged in all possible ways and these words are written out as in a dictionary, what is the rank of the word "rachit".
If substitution is as it's burnout. Didn't remember. But this is one.
In the month of march a basketball team played 60 games and won 30% of its game played. After some time the team raised it to 50%. How many games did the team had won to attain this average.
Complete the series. 4, -5, 11, -14, 22, ---
