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Here is a list of 10 questions that Google just banned from their interviews.
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Tuesday, July 22, 2014:
Hiring the best talent has always been tough task for successful
multinational companies. The job interview of these companies is bizarre
task for candidates. Sometimes there are questions that have no
answers. These questions are designed to test real talent of candidates.
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Google used to be the shining example of these practices. It had
high standards and asked silly questions. The questions were so nuts
that they were eventually banned from being asked. That's right, banned.
Aspiring
candidates will be more than happy to hear that these questions are now
banned from interview. Let’s take a look at 10 questions that have been
banned from Google interviews.
Golf balls in a school bus
Question : How many Golf balls can fit in a school bus?
Job : Product manager
Answer : Brave candidate named Matt Beuchamp gave this answer-
Normal
school bus is 8 feet wide and 6x20 feet long. Which means 960 cubic
feet volume. 1 cubic foot = 1,728 cubic inch. So that means 960x1,728 =
1.6 million cubic inches.
Radius of standard size golf ball is
2.15cm (0.85-inch). So, volume of standard size golf ball is - 4/3 x pi
(3.14) x 2.15 = 40.96 cubic cm (2.5 cubic inch). If you divide 40.96
cubic cm into 1.6 million then you will get number of balls, which comes
660,000 golf balls.
But since there will be seats in the buses,
which will consume some space. So let’s round up the number to 500,000
golf balls. Which still sounds ridiculous. Matt doubts if bus can take
any more than 100,000 balls. But according to maths, 500,000 golf balls
can be filled in the bus.
2. Evacuation Plan
Question: Design an evacuation plan for San Francisco?
Job: Product Manager
Answer:
This ridiculous question totally depends upon how the interviewee will
attack the problem. Hence the answer would be, “what kind of disaster
are we looking at?”
3. Piano tuners in the world
Question: How many piano tuners are there in the world?
Job: Product Manager
Answer:
Let’s suppose a piano needs to be tuned once a week, and it takes an
hour for tuner to tune the piano. Piano tuner may be working 8 hours a
day for 5 days a week. So, a tuner can tune 40 pianos a week. So the
answer would be, “One tuner for every 40 pianos.”
4. Washing windows
Question: How much should you charge to wash all the windows in Seattle?
Job: Product Manager
Answer: This is tricky question. A smartypants will answer this questions as, “$10 per window.”
5. Honey someone shrunk me
Question:
You are shrunk to the height of a nickel and your mass is
proportionally reduced so as to maintain your original density. You are
then thrown into an empty glass blender. The blades will start moving in
60 seconds. What do you do?
Job: Product Manager
Answer: This question is designed to check candidate’s creativity. The answer would be,”try to break the electric motor.”
6. Round manhole covers
Question: Why are manhole covers round?
Job: Software Engineer
Answer:
Ordinarily plane aligned with the plane of street goes perpendicular to
the street hence, manhole covers are made round so that it doesn't fall
through the manhole.
7. Secret messages
Question: You
need to check that your friend, Bob, has your correct phone number, but
you cannot ask him directly. You must write a the question on a card
which and give it to Eve who will take the card to Bob and return the
answer to you.
What must you write on the card, besides the
question, to ensure Bob can encode the message so that Eve cannot read
your phone number?
Job: Software Engineer
Answer: Simplest
answer would be, “Ask Bob to call you at some specific time, he will
call if he has your number. If he doesn't he wouldn't be able to call
you.”
Another suggested answer is, “Tell Bob to add all digits of
phone number, check that sum and confirm if he has your correct
number.”
8. Of databases and kids
Question: Explain a database in three sentences to your eight-year-old nephew.
Job: Product Manager
Answer: This question is designed to test candidate’s ability to transform complex problems in simplest form.
The
answer would be,”People use database to remember the information.
Database is nothing but a machine that holds information of various type
of things.”
9. Dead Beef
Question: Explain the significance of 'Dead Beef'.
Job: Software Engineer
Answer:
This term is used in assembly language class in software engineering.
It is a hexadecimal value which was commonly used in debugging in
mainframe/assembly days. DEADBEEF makes finding and marking memory in
hex dumps pages easier.
10. Dropping eggs from 100th floor
Question:
You have two eggs and get access to a one-hundred-story building. Eggs
can be very hard or very fragile means it may break if dropped from the
first floor or may not even break if dropped from 100th floor. Both eggs
are identical.
You need to figure out the highest floor of a
100-story building an egg can be dropped without breaking. The question
is how many drops you need to make. You are allowed to break 2 eggs in
the process.
Job: Product Manager
Answer: Let’s number the
eggs, starting from 14th floor, and then go up 13 floors, then 12, then
11, follow the same manner- 10, 9, 8, 7, 6, 5, 4 until it reaches to
99th floor.
If eggs were broke at 100th floor, it will take 12
drops. For example, if 49th floor is highest floor then number of drops
will be 14th, 27th, 39th, 50th. (the egg would break on 50th floor) plus
add 40, 41, 42, 43, 44, 45, 46, 47, 48, 49th. So that’s 14 drops.
Hence, the maximum number of drops would be 14.
These were top 10 ridiculous questions that are banned in Google interview.
There are 7 more questions that are banned-
1.
Question: You are at a party with a friend and 10 people are present
(including you and the friend). Your friend makes you a wager that for
every person you find that has the same birthday as you, you get $1; for
every person he finds that does not have the same birthday as you, he
gets $2. Would you accept the wager?
2. Question: How many times a day does a clock's hands overlap?
3. Question: How many vacuums are made per year in USA?
4.
Question: If a person dials a sequence of numbers on the telephone,
what possible words/strings can be formed from the letters associated
with those numbers?
5. Question: Every man in a village of 100
married couples has cheated on his wife. Every wife in the village
instantly knows when a man other than her husband has cheated, but does
not know when her own husband has. The village has a law that does not
allow for adultery. Any wife who can prove that her husband is
unfaithful must kill him that very day. The women of the village would
never disobey this law. One day, the queen of the village visits and
announces that at least one husband has been unfaithful. What happens?
6. Question: You have to get from point A to point B. You don’t know if you can get there. What would you do?
7. Question: A man pushed his car to a hotel and lost his fortune. What happened?
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