Advertisements
Advertisements
प्रश्न
The sum of two numbers is 50, and their difference is 10. Find the numbers.
उत्तर
Let the two nos be x and y
Then, as per the questions,
Their Sum = x + y = 50
Their difference = x + y = 10
Then, adding the two equations, 2x = 60
x = 30, y = 20.
APPEARS IN
संबंधित प्रश्न
Solve the following equation:
5(8x + 3) = 9(4x + 7)
Solve the following equation:
`"c" - 1/2 = 1/3`
8 – 7x = 13x + 8
Solve: `"3x"/4 + "4x" = 38`
Solve: `("2x" - 3)/3 - ("x" - 5) = "x"/3`
The measures of angles of a quadrilateral in degrees are x°, (3x-40)°, 2xo and (4x+20)o. Find the measures of the angles.
The speed of a boat in still water is 8km/h. It takes the same time in going 20km in downstream as it takes in going 12 km upstream. Find the speed of the stream.
The length of a rectangle is 30 cm more than its breadth. The perimeter of the rectangle is 180 cm. Find the length and the breadth of the rectangle.
The breadth of a rectangular room is 2 m less than its length. If the perimeter of the room is 14m, find it's dimensions.
A and B together can complete a piece of work in 6 days. A can do it alone in 10 days. Find the number of days in which B alone can do the work.
