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# Sample Exam 2 - Infotech Sample Placement Papers by 3i

Details of Sample Exam 2 - Infotech Sample Placement Papers by 3i conducted by 3i for job interview.
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Here are some solved questions from 3i Infotech Placement Papers

1) Three cards are drawn at random from an ordinary pack of cards.Find the probability that they will consist of a king,
a queen and an ace.

Ans. 64/2210.

2) A number of cats got together and decided to kill between them 999919 mice. Every cat killed an equal number of
mice. Each cat killed more mice than there were cats. How many cats do you think there were ?

Ans. 991.

3) If Log2 x - 5 Log x + 6 = 0, then what would the value / values of x be?

Ans. x = e2 or e3.

4) The square of a two digit number is divided by half the number.After 36 is added to the quotient, this sum is then divided by 2.
The digits of the resulting number are the same as those in the original number, but they are in reverse order. The ten,s place of
the original number is equal to twice the difference between its digits. What is the number?

Ans. 46