HCL Solved Placement Papers

Dear Reader,
Below are four problems based on fractions.

Question 1

Which pair of the following fractions lie between 3/8 and 5/8 ?

a)1383/4000 & 1581/4000
b)1691/4000 & 3713/4000
c)2159/4000 & 2401/4000

d)1971/4000 & 3012/4000

Answer : c)2159/4000 & 2401/4000

Solution:

Dear Reader,
Below are three problems dealing with the concept of points of games and races.

Points to remember :

1) In a 100 race, 'A can give B 12 m' or 'A can give B a start of 12 m' or 'A beats B by 12 m' means that while A runs 100 m, B runs (100 - 12) = 88 m.

Dear Reader, Below are 4 questions on 8086 microprocessor.

Question 1

In 8086 microprocessor, the 16 bit size applies to

a. data bus
b. internal registers
c. both a and b

Answer : c. both a and b

Question 2

Who is the creator of 8086 microprocessor?

Dear Reader,

Very often you can expect basic C programs using recursive algorithms in interviews of leading companies like HCL. Below are few for your practice.

Question 1

In C programs, if a function calls itself within its definition, what can you say about that function?

Answer :

Such functions are called Recursive functions.

Dear Reader,

Below are three sample puzzles involving logical thinking and equation formation / solving.

Question 1

Dear Reader,

Below are 4 practice interview questions based on 'instances' concept of Database Servers.

Question 1

In Very Simple Terms, Can you describe what is actually a Database Server instance?

Answer :

Dear Reader, Below are three problems dealing with laws of logarithms. You have to learn and remember basic logarithm formulas to answer these questions.

Question 1

Dear Readers, Below are few problems based on arithmetic and geometric means.

Question 1

A group of students were proceeding on an education excursion. One of the students told:
The arithmetic mean of 2 numbers is 32.5 and their geometric mean is 30. One of the numbers will be

a) 20 b) 42 c) 12 d) none of these.

Answer : a) 20

Dear Reader, below are relatively easy problems on profit and loss. Hope they help you to stay prepared.

Question 1

A man buys certain number of steel rods priced at Rs. 7 per rod for Rs. 120. He then sells them at a loss of 25%. What will be his loss amount for every 100 steel rods.

a)Rs. 180 b)Rs.175 c)Rs.170 d)Rs.160

Dear Reader, Below are three practice questions on numbers.

Question 1

If N is a whole number, then N²(N² – 1) is always divisible by one of the following:

a) 24 b) 12 c) 12- N d) none of these.

Answer : b) 12

Solution :