2-[2-{2-2-2}]

3 Answers  

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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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Three containers A, B and C have volumes a, b, and c respectively; and container A is full of water while the other two are empty. If from container A water is poured into container B which becomes 1/3 full, and into container C which becomes 1/2 full, how much water is left in container A?

0 Answers   iNautix, Wipro,

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A started at 9.00 am with 6 mph and B started at 9.30 am with 8mph in the same direction. At what time they will meet?

6 Answers   CitiGroup, Ramco,

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Circumference of circle?

3 Answers   Yardi,

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If I have to measure all weights from 1 kg to 121 kg, what is the minimum number of weights I should keep? 1.1 2.5 3.13 4.21

6 Answers   CSC,

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Complete the series 2, 7, 24, 77,__ (hint: 2*12= 24, 7*11= 77, therefore 24*10= 240)

0 Answers   TCS,

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7 students can complete a task of making 9 scientific models in 21 days. How many students can make 3 models in 14 days.

0 Answers   NTS,

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There are n urns and m balls. If we put 3 balls in each urn 3 balls will be excess. If we put 4 balls in each urn 1 urn will be excess. Find no. of Urns (or) Balls?

8 Answers   Accenture, CTS,

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Why we declare in the way List ab = new ArrayList(); what is the use of it?

1 Answers   ProKarma,

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Find the speed of the boat in still water if the river runs at 4 km/hr. The time taken by a Suresh to row the boat upstream is 3 as the time taken by him to row it downstream.

0 Answers   Cap Gemini,

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Find the correct meaning of the following phrase: A man of letters

2 Answers   Hexaware,

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