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Amazon Interview Questions

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There are 6 pairs of black socks and 6 pairs of white socks. What is the probability to pick a pair of black or white socks when 2 socks are selected randomly in darkness.

1 2014

There are three persons A,B,C .A shots the target 6 times out of 7 shots .B shots 4 out of 5 shots .Then what is the probability of hitting the target twice when 2 persons are selected at random.

1484

If a man buys 1 lt of milk for Rs.12 and mixes it with 20% water and sells it for Rs.15, then what is the percentage of gain?

1246

Pipe A can fill a tank in 30 mins and Pipe B can fill it in 28 mins.If 3/4th of the tank is filled by Pipe B alone and both are opened, how much time is required by both the pipes to fill the tank completely ?

1140

The population of a city increases @ 4% p.a. There is an additional annual increase of 4% of the population due to the influx of job seekers, find the % increase in population after 2 years ?

1254

The ratio of the number of boys and girls in a school is 3:2 Out of these 10% the boys and 25% of girls are scholarship holders. % of students who are not scholarship holders.?

1262

Instead of multiplying a number by 7, the number is divided by 7. What is the percentage of error obtained?

1462

An article sold at a profit of 20% if both the cost price and selling price would be Rs.20/- the profit would be 10% more. What is the cost price of that article?

1345

A man buys 12 lts of liquid which contains 20% of the liquid and the rest is water. He then mixes it with 10 lts of another mixture with 30% of liquid.What is the % of water in the new mixture?

1410

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Amazon Interview Questions

Un-Answered Questions

What are the new features in spring 5?

448

What is an abstract class in ooabap ?

What is the meaning of “dirty read” in the database?

1042

What is higher level item category?

1209

What is meant by mpp mode?

1116

Do I have 64 bit windows?

825

What are the advantages of autoboxing?

1031

What are AWK Numerical Functions?

1170

Define response object?

1009

Which version of python is best?

889

What is JVM switch. Why JVM switch is required ?

2611

How many cells (nuclei) per ml pellet?

1833

How do I open an ocx file?

770

what is the water cement ratio? how to calculate it? list the wt. of constructions materials including concrete both ordinary and light wt. concrete

2313

How to assigning a new character in a string?

1118