Question

lf the length of a rectangle is increased by 1metres, the area would increased by63 square metres if the length is increased by 2 metres, the area would increased by 52 square metres what are the length and breadth <br />​l​

Answer 1

Answer:

जर आयताची लांबी 1 मीटरने वाढविली तर क्षेत्र लांबी 2 मीटरने वाढविले तर क्षेत्रफळ 63 चौरस मीटर वाढेल, क्षेत्रफळ 52 चौरस मीटरने वाढेल.लांबी आणि रुंदी किती आहे <br/> l

Answer 2

Answer:

length=x

breadth =y

area=?

Step-by-step explanation:

length is increased by 1metre =x+1

breadth is increased by 5metre =y+5

area of new rectangle =area of original rectangle +63

area=(x+1)(y+5)

xy+5x+y+5=xy+63

5x+y+5=63

5x+y=63-5

5x+y=58(equation 1)

length =x+2

breadth =y+3

area=(x+2)(y+3)

xy+3x+2y+6=xy+52

3x+2y+6=52

3x+2y=52-6

3x+2y=46(equation 2)

3(5x+y=58)

15x+3y=174

5(3x+2y=46)

15x+10y=230

15x+10y=230

15x+3y=174

10y-3y=230-174

7y=56

y=56÷7

y=8

x=5x+y=58

=5x+8=58

=5x=58-8=50

x=50÷5=10

x=10