Dear Reader,
Below are three problems which requires you to simplify equations and find some unknowns.

Question 1

Dear Reader,
Below are four sample problems on two digit numbers involving calculations on the digits of the number.

Question 1
If the digit in the ten's place of a two digit number is 3 less than the digit unit’s place and if the ratio of the sum of the digits of that number to that of the number is 1:4 then the number is:
a)32 b)34 c)36 d)38

Dear Reader,
Below are three problems based on averages.

Question 1

The average of four numbers is 62.5. If none of them is less than 50 then the greatest possible value of summation of two of them is:
a)150 b)64 c)130 d)125

Answer : a)150

Dear Reader,
Below are three problems based on the method of backward substitution with simple calculations.

Question 1

In a stationary shop, 5 pens are worth 8 pencils, 5 pencils are worth 4 diaries and 7 diaries are worth 3 books. If 7 books cost Rs.203, then the approximate price of each pen is:
a)Rs.16 b)Rs.20 c)Rs.10 d)Rs.19

Dear Reader,
Below are three problems on the concept of circle's tangent and secants.

Question 1

Dear Reader, Below are 4 sample interview questions related to communications in computer networks.

Question 1

When a communication channel is said to be half duplex ? How it is different from full duplex ?

Answer :

Dear Reader,
Below are given technical questions which you can expect in Honeywell and other companies placement tests.

Question 1

The code for creating stack in DOS is _____ .

a) STACKS = (number),(size)

b) STACKS = number

c) STACKS = (size),(number)

d) STACKS = size

Answer : a) STACKS = (number),(size)

Dear Reader,
Below are three problems dealing with scalene, isosceles and right angled triangles.

Question 1

The length of the line segments AC, AB and BC are 21 cm, 20 cm and 13 cm respectively. If the length of the line BD which is perpendicular to AC is 12 cm then what is the length of the segment CD ?

a) 3 cm b) 5 cm c) 9 cm d) 12 cm

Dear Reader,
Below are three problems based on the concept of mensuration dealing with volumes of sphere, cone and cylinder.

Formulas to remember:

Volume of CYLINDER = pi(r²)h cubic units.
Volume of SPHERE = 4/3 pi(r³) cubic units.
Volume of CONE = 1/3 pi (r²)h cubic units.

where r = radius and h = height.

Dear Reader,
Below are three problems based on time, distance and relative speed.

Question 1

Two toy trains run around a circular track at the rate of one round per hour and six rounds per hour respectively. They start from the same point in the same direction at 7.30 a.m. and they cross each other first at:
a)7.35a.m b)8.35a.m c)7.42a.m d)8.02a.m