Dear Reader,
Below are three problems based on the concepts related to area of square, rectangle and circle.

Question 1

There is a rectangular shaped park and a circular garden inside the park. If the length and breadth of the park are 18 m and 14 m respectively then what will be the maximum possible area of the circular garden?

Dear Reader,
Below are three problems dealing with speed and time calculations.

Question 1

Two buses leaving from two stations 20 km away from each other travel with constant speed of 45km/hr towards each other.Find the time taken to cross each other if the length of each bus is 100m.
a)10sec b)4sec c)15sec d)20sec

Answer : b)4sec

In each of the below questions you have to identify which one is false.

Question 1

Which of the following is not true regarding Normalization of databases ?

Dear Reader,
Below are three model problems dealing with the formulae (x+y)² = x² + y² + 2xy and (x-y)² = x² + y² - 2xy

Question 1

Find X when X - Y = 3 and X² + Y² = 89 where X and Y are integers.
a)10 b)-5 c)-10 d)-3

Answer : b)-5.

Solution :

Dear Reader, Below are given puzzle questions for your practice.

Question 1

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,
Below are three problems on areas of Cones and Cubes. In each of the questions you have to find unknown parameters based on known area volumes.

Question 1

The curved surface area of a cone is equal to the area of a rectangle whose length is 33 c.m and the area of the base of that cone is 154 sq.cm. Then the height of the cone is __:

Dear Reader,
Below are four problems based on proportionality, you have to form equations to find unknown variables and constants.

Points to remember :

Variations :

1) We say that x is directly proportional to y, if x = ky for some constant k

2) We say that x is inversely proportional to y, if xy = k for some constant k

Dear Reader,
Below are three problems based on the concept of mixtures in some ratio.

Question 1

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