Question
I. x2 = 100 II. y2 - 9y +
20 = 0 In the following questions two equations numbered I and II are given. You have to solve both the equations. Give answer if;Solution
I. x2 = 100 x= +10. -10 II. y2 - 9y + 20 = 0 y2 - 5y - 4y + 20 = 0 y (y - 5) - 4 (y - 5 ) = 0 ( y - 4 ) ( y - 5 ) = 0 y = 4, 5 Hence, if x = y or relation cannot be established between x and y
If base of a prism is square of side 8 cm & height is 20 cm . What is the volume of prism?
If 2156 is added in a number then number become 344(4/9)% of itself. Find the original number?
The volume of a cube is 216 cm³. If the cost of painting the cube is Rs. 12 per cm², then find the cost of painting five faces of the cube.
A rectangular water tank is 80 m x × 40 m. Water flows into it through a pipe of 40 sq.cm at the opening at a speed of 10 km/hr. The water level will ...
A cuboid has length 10 cm, breadth 8 cm and height 6 cm. What is its volume?
The diameter of the base of a cylindrical drum is 70 cm and its height is 15 cm. The drum is full of water and the water from the drum is transferred to...
A cube of 25 cm side is divided into 125 smaller cubes of equal volume. Find the side of smaller cubes:
The cost of fencing a rectangular field at the rate of Rs. 4/metre is Rs. 360. If the length of the field is 13 metres more than its breadth, then find ...
The area of a rhombus is 168 cm2. The length of one of its diagonals is 28 cm. The length of the other diagonal is:
Curved surface area of cylinder is 646.8 cm2. If ratio of radius to height of the cylinder is 10:4 respectively, then find the base area of t...
Relevant for Exams:
