Question

15.
The length of a rectangle is twice of its breadth in the perimeter is 90 meters, then the length and breadth
of the rectangle respectively are
A. 15,30
B. 30,15
C, 25,20
D. 60,30
​

Answer 1

Answer:

let the length be 2x

and breadth be x

perimeter of rectangle = 2(l+b)

x+2x = 90

3x = 90

x = 30

Length = 2x = 60

breadth = x = 30

Answer 2

Answer:

B) ) 30,15

Step-by-step explanation:

let breadth be " x "

then length will be " 2x "

perimeter of rectangle = 90 m

perimeter of rextangle = 2 ( l + b)

90 m = 2( x +2x)

90 = 2(3x)

90 = 6x

90/6 = x

** x = 15 ( breadth )

** 2x = 2(15) = 30 ( length)

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