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Interview Process   |   Interview Puzzles / Aptitude
Organization : Mindfire Solutions
Position : Software Engineer

Mindfire Solutions Interview Process

I applied online for the position of Software Engineer at Mindfire Solutions. A seemingly early reply from the company was received by me i.e. only a week after I applied and I was called for the interviews.

Round 1 - Written test
The written test was the longest I have ever attended. Most of the places, the test is either an hour or at most a couple of hours long. But here, it was three hours long and thus it was really tiring. The test was based on aptitude questions, language skills, IQ related problems and reasoning skills along with basic programming skills. The aptitude questions and the programming questions were the easiest. Language skills test may depend from person to person but IQ based questions were moderately difficult.

Round 2 - Technical Round
To my surprise, the technical round was even lengthier than the written test. It was a whopping four hours long and by the end of it I was literally exhausted. But let me tell you what happened in between. The questions asked were pretty long (most of them). It was based on the overall understanding of C, C++ and Java and their implementation. Beware of the fact that you will have to do the coding on a paper and thus you must be quite sound with the languages.
Q1. Convert the user's input digit into words like 13 = thirteen. Range is 0-99.
Q2. Differentiate between document ready and anonymous function in JavaScript.
Q3. Questions regarding C string handling and creating a relational model DBMS for specified requirement.

Round 3 - HR Interview
The fact that the previous rounds are so lengthy will have effect on this HR interview for sure. It happened with me. May be they have designed it that way. I was completely exhausted when this round started. The questions were basic twisted HR questions which you can browse through in any of the online site dedicated for the same. But it is your patience and confidence that is to be tested in this round. It was not as I had thought but I think I did a decent job as I was given the offer afterwards.

How to crack (get into) Mindfire Solutions Interview

The foremost thing if you are appearing in the Mindfire Solutions interview is that you must go with a lot of patience. That is the thing that will be helping you the most. If you are new to interviews, you need it more. The rounds are pretty long and exhausting.

For the written test, you need not prepare if you have a fair aptitude skills. It was nothing too difficult to solve and you can easily complete the test in the given time. The problem is the technical round. The coding questions will be lengthy but the other questions are from the basic area so not to be worried about.

The HR questions were basic but since you have spent much time already in the interview rounds before, you might be losing that confidence you had in the beginning of the day. So watch out. Anyways, my best wishes for all the candidates.

Thanks Anmol for sharing the details of your interview.
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Logical Arrangement Bonfire Puzzle

30 classmates went for a bonfire. While sitting around the fire, they decided to play a game. To play it, they divided themselves into 5 teams in a way that there were 5 rows having 7 people each.

How can this arrangement be possible while sitting around the bonfire?

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Pirates Probability Brain Teaser

You are stuck with the pirates who might even kill you on board. They give you a chance to survive. There are hundred black rocks and hundred red rocks. There are two empty sacks which are labelled as heads and tails respectively. You have to divide the rocks in two bags as per your wish. Then a fair coin will be flipped. If its heads, you will have to pick a rock on random from the sack labelled heads and if its tails, you will pick up from the tails sack. If you pick up a black rock, you will be freed and if you pick up a red rock, you will be killed.

How will you distribute the rocks so that your chances of survival are the best?

  • Views : 40k+
  • Sol Viewed : 10k+

Hard Logic Brain Teaser

There are 100 doors. 100 strangers have been gathered in the adjacent room. The first one goes and opens every door. The second one goes and shuts down all the even numbered doors – second, fourth, sixth... and so on. The third one goes and reverses the current position of every third door (third, sixth, ninth… and so on.) i.e. if the door is open, he shuts it and if the door is shut, he switches opens it. All the 100 strangers progresses in the similar fashion.

After the last person has done what he wanted, which doors will be left open and which ones will be shut at the end?

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Candle Trick Teaser Problem

Husband has prepared for a candle light dinner on the honeymoon for his wife. While they were having the dinner, a strong breeze flew through the open window and four candles out of ten were extinguished. After that, the husband closed the window.

How many candles were left in the end?

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Water Measurement Riddle

A barman is having a 12 liters jug full of beer. He needs to divide or split that beer into two equal parts. All he has is two empty jugs of capacity 8 liters and 5 liters.

How will he do it using them?

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Unique Brain Teaser

It takes ten minutes to fry a steak (five minutes for each side). You are frying the steaks in a pan that can accommodate only two steaks at one time. What is the least amount of time by which you can fry all the three steaks you have?

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Tricky Iq Question

In a jar, there are some orange candies and some strawberry candies. You pick up two candies at a time randomly. If the two candies are of same flavor, you throw them away and put a strawberry candy inside. If they are of opposite flavors, you throw them away and put an orange candy inside.

In such manner, you will be reducing the candies in the jar one at a time and will eventually be left with only one candy in the jar.

If you are told about the respective number of orange and strawberry candies at the outset, will it be feasible for you to predict the flavor of the final remaining candy ?

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Very Hard Math Question

There stand nine temples in a row in a holy place. All the nine temples have 100 steps climb. A fellow devotee comes to visit the temples. He drops a Re. 1 coin while climbing each of the 100 steps up. Then he offers half of the money he has in his pocket to the god. After that, he again drops Re. 1 coin while climbing down each of the 100 steps of the temple.

If he repeats the same process at each temple, he is left with no money after climbing down the ninth temple. Can you find out the total money he had with him initially?

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Famous Probability Puzzle

This is a famous probability puzzle in which you have to choose the correct answer at random from the four options below.
Can you tell us whats the probability of choosing correct answer in this random manner.

1) 1/4
2) 1/2
3) 1
4) 1/4

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Weight Balance Riddle

You can place weights on both side of weighing balance and you need to measure all weights between 1 and 1000. For example if you have weights 1 and 3,now you can measure 1,3 and 4 like earlier case, and also you can measure 2,by placing 3 on one side and 1 on the side which contain the substance to be weighed. So question again is how many minimum weights and of what denominations you need to measure all weights from 1kg to 1000kg.

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