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   TCS, Zoho,

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What is the distance travelled by a ball that falls from a height of 8 mts and each time it bounces half the distance back?

0 Answers   CGI,

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plz send test pattern of nsn engineers graduate.

0 Answers   MTN, Urjanet,

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The cost of four dozen proof machine ribbons and five dozen accouting machine ribbons was Rs.160/-. If one dozen accounting machine ribbons cost Rs.20/-, what is the cost of a dozen proof machine ribbons?

4 Answers   TCS,

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If y/x = 1/3 and x + 2y = 10, then x is

8 Answers   Paladon,

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Please send the model question paper to my email id this is my email id :lalitha_7stars@rediffmail.com

0 Answers  

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X and Y live in a North-South parallel street. X travels 10 km towards North to reach the east-west street . Y travels 6 km towards south to reach the east ?west street . X travels now 4km towards east and y travels 8km towards west and they met each other. What is the distance between x and y?

4 Answers   Accenture, CTS,

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A cylinder is 6 cms in diameter and 6 cms in height. If spheres of the same size are made from the material obtained, what is the diameter of each sphere?

0 Answers   Mu Sigma,

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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?

3 Answers  

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at central state college the ratio of the number of students taking spanish to the number of taking french is 7:2,if 140 students taking french,how many are taking spanish

2 Answers  

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i want epf model paper.please send me

0 Answers  

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How much is 3/7 larger than 20 percent of 2

1 Answers   DSQ Software,

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