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
- 17118 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
Find the missing number in the series: 2, 5, __ , 19 , 37, 75
What is the 12th term of the series 2, 5, 8, ....
SEND + MORE = MONEY. Then what is the value of M + O + N + E + Y ?
At 20% discount, a cycle is sold at a selling price of 2500 Rs. What is the actual price?
Find the 8th term in series: 2, 2, 12, 12, 30, 30, - - - - -
There are 6 people W,H,M,C,G,F who are murderer , victim , judge , police, witness, hangman. There was no eye witness only circumtancial witness. The murderer was sentenced to death. Read following statement and determine who is who.
There r 1200 elephant .some have blue and pink strips.some have pink & green strip. 400 ele. have only pink strip. how many have only blue strip
There are some 20 Basketball players & 30 Football players, and 25 cricket players. 1 of them plays all the three games. 8 of them plays at least two games. They are 50 altogether. How many of them plays none of the games.
A>B,B>C,C=D,D>E,then which is greatest?
one fast typist type some matter in 2hr and another slow typist type the same matter in 3hr. if both do combinely in how much time they will finish.
How is the father of the man ,who is the brother of the only aunt of my brother related to me?
A power unit is there by the bank of the river of 750 meters width. A cable is made from power unit to power a plant opposite to that of the river and 1500mts away from the power unit. The cost of the cable below water is Rs. 15/- per meter and cost of cable on the bank is Rs.12/- per meter. Find the total of laying the cable.
With a 4/5 full tank a vehicle can travel 12 miles, how far can it travel with a 1/3 full tank
There are three types of tickets available for a concert: orchestra , which cost $12 each; balcony, which cost$9 each: and box, which cost $25 each. There were P orchestra tickets , B balcony tickets, and R box tickets sold for the concert. Which of the following expressions gives the percentage of ticket proceeds due to the sale of orchestra tickets?
Next number in the series 1, 1/2, 1/4, 1/8 ?
