1. The length of a room is 2 × 1/2 times of the width of the room. If the perimeter of the room is 70 meters, how many square meters is its area? (step by step explanation and reasons for the step)
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Answer:
let the width be X
length=5/2of X=5/2x
a/q
perimeter of room =70m
2(l+b)=70m
X+5/2X =35m
X=10m
length=5/2×10m=25m
width=10m
area of room =l×b
=25m×10m
=250m^2
resmipr82:
how did you get x=10m??*(please explain)
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