# 3i Infotech Placement: Sample Questions 407 - 409 of 1245

Glide to success with Doorsteptutor material for competitive exams : get questions, notes, tests, video lectures and more- for all subjects of your exam.

## Question 407

Edit

### Write in Short

Short Answer▾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.

### Explanation

Three cards are drawn at random from a pack of 52 cards.

So, probability of sample space,

We are asked to find the probability that card will be a king, a queen and an ace.

We know that there are total 4 kings, 4 queens and 4 aces in the pack of 52 cards.

So, probability of event,

So, probability of getting a king, a queen and an ace

## Question 408

## Question 409

### Explanation

- “JAR” stands for java Archive.
- It is a file format based on the popular ZIP file format and used for aggregating many files into one.
- A JAR file is contains compressed version of class files, audio file, image files- as an aggregation of resources into a single, compressed file.