What
is the decimal equivalent of 1/16 , 3/16, 5/16 or 7/16 ?
This is common finance / bank interview question frequently asked.
Also this is a classic question to stress you out and check
how quickly your mind works.( 1/16 = .0625, so 3/16 = .1875
5/16= 0.3125 and 7/16 = .4375).
What is the sum of the numbers from one
to 50 ?
The trick is to pair up the numbers into groups of 51 (1 + 50
= 51; 2 + 49 = 51; etc.). Twenty-five pairs of 51 equals 1275.
You have a computer that costs Rs.32,000 but is selling for 20
percent off. How much is the discounted price?
The answer is Rs.25,600. Calculate quickly- 80% of 32,000? =
25,600. (You can calculate loudly in an interview.)
If you look at a clock and the time is 3:15, what is
the angle between the hour and the minute hands?
Remember the hour hand moves as well. The hour hand moves a
quarter of the way between three and four, so it moves a quarter
of a twelfth (1/48) of 360 degrees. So the answer is seven and
a half degrees, to be exact.
You have a five-litre jug and a three-litre jug. You
must obtain exactly four litres of water. How will you do it?
First fill up the three litre jug and pour the same to the five
litre jug. Again repeat the same, but now you can only pour two
litres in the five litre jug while you have exactly one litre
remaining. Now you empty the five litre jug and pour the one
litre into the five litre and fill up the three litre again to
the full and pour it in the five litre and you have exactly four
litre water.
Why are manhole covers round?
Think out loud- what if they were square? It would make it harder
to fit with a cover. One would have to rotate the cover exactly
the right way to fit it on the manhole. With a round cover there
is no necessity to rotate it the right way, also it is easier
for transportation. Does the round structure of the manhole has
more load bearing capacity then other designs?
A company has 10 machines that produce
gold coins. One of the machines is producing coins that are
a gram light. How do you tell which machine is making the defective
coins with only one weighing?
Every machine will have to produce a sample coin or coins, and
one must weigh all these coins together. How can one someone
indicate which coins came from which machine? The best way to
do it is to have every machine make a different number of coins,
so that machine 1 will make one coin, machine 2 will make two
coins, and so on. Then take all the coins, weigh them together,
and consider their weight against the total theoretical weight.
For example, If there is four grams shortage, then machine 4
is defective, if there is 2 gram shortage then the second machine
is defective.
More questions:
If the entire population China stood up with outstretched arms
touching, how many times would they encircle the Earth?
You have 9 balls, with one weighing more than the others, but
you can't tell by just picking it up. Using a scale no more than
two times, how would you find the ball that outweighs the others?
|
