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?
Answer Posted / preethy
all the perfect squares
Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
If the vertex (5,7) is placed in the memory. First vertex (1,1) ?s address is 1245 and then address of (5,7) is ----------
There are two glasses, one is filled with orange juice and other is filled with apple juice both in equal quantities say 50 50 ml. 50% orange juice is poured in apple juice and than the 50% mixture of orange and apple juice is poured in the glass of orange juice. Now you have to find out how much orange juice is there in apple juice glass and vice-versa.
If A=Z, B=Y, C=X, .......... Z=A, Then LIMIT = ?
If a and b are positive integers and (a-b)/3.5 = 4/7, then the relation between a and b is
there is a 4 inch cube painted on all sides. this is cut into no of 1 inch cubes. what is the no of cubes which have no pointed sides.
The price of coffee increases by 20%, how much percent consumption of coffee should be reduced by Reema so that the expenditure on coffee remains the same.
4 couples have a party.Depending on the set of statements,find who insulted whom and who is the host of the party.
There are 12 boys and 15 girls, How many different dancing groups can be formed with 2 boys and 3 girls. Which of the following fractions is less than 1/3?
Plz send me the SBI exam previous question paper.
A vegetable seller sells his vegetables at the rate of Rs. 9 kg and thereby incurs a loss of 20%. If he had to make a profit of 5%, at what price per Kg should he sell his vegetables?
A sum of Rs 312 is divided among 100 boys and girls such that every boy gets an amount of Rs 3.60 and every girl gets 2.40 Rs. Calculate the number of girls in the group.
if the area of square increases by 69% then side of the square increases by:
if for h hours of work the salary is s and the employee gets x hours of medical leave, then what is the salary/hr ?
Each row of letters or numbers has a rule connecting them. Write the next number or letterin the brackets. 1 , 4 , 9 , 16 , 25 , 36 , (_ _ _)
Find the next number in the series 1, 3 ,7 ,13 ,21 ,31?