Question

5. If the length of the rectangle is increased by 2m and breadth decreased by 1m, the area would decrease by 4 sq.m. If the length is decreased by 3m and breadth increased by 3m, the area would increase by 9 sq.m
a) If the length is x and breadth is y, write 2 equations.
b) Find the length and breadth.

Answer 1

Step-by-step explanation:

let the length and breadth of the rectangle be x and breadth of rectangle be y

we know that,

Area of rectangle = length*breadth

so,

xy-4=(x+2) (y-1) ____1st equation

xy+9=(x-3) (y+3)____2nd equation

Now,

solving the equation 1 and 2 by

we get ,

length = 10and breadth= 6

Answer 2

Answer:

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