Below are three problems based on the concepts related to area of square, rectangle and circle.
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?
Below are three problems dealing with speed and time calculations.
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
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.
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 __:
Below are four problems based on proportionality, you have to form equations to find unknown variables and constants.
Points to remember :
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
Below are three problems based on the method of backward substitution with simple calculations.
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