length of a rectangle is 1 and half time is breadth . if the perimeter of the rectangle is 100cm. find the length and the breadth of rectangle
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let the breadth of rectangle be x
the length of rectangle = 1.5x
perimeter of rectangle=2(length+breadth)
=2(x+1.5x)
=5x
it is given that perimeter=100cm
thus, 5x=100
x=20 cm
length=1.5x
=1.5 x 20
=30 cm
hence the length and breadth of rectangle are 30cm and 20 cm respectively
the length of rectangle = 1.5x
perimeter of rectangle=2(length+breadth)
=2(x+1.5x)
=5x
it is given that perimeter=100cm
thus, 5x=100
x=20 cm
length=1.5x
=1.5 x 20
=30 cm
hence the length and breadth of rectangle are 30cm and 20 cm respectively
dkdk:
Sum given in. The Solve with elimination method
u shud have mentioned in question ...... ill edit my answer wait
u can use elimination only when u have a system of equatiosna tleast 2 equations must be there for that so this sum is useless for elimination method
Correct answer with perfect method is
L=x b=y x=1½therefore x=3/2y & thus eqn 1 is 2x-3y=0& for eqn 2. 2( x+y)=100& here we get eqn 2 x+y=50 then solve
i did the exact same thing right ?
instead of y i wrote directly y
directly 1.5x **
Yaa but from eqn 1&2 it should be eliminated
kk
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