A room 5m long and 4m wide is surrounded by a verandah . If the verandah occupies an area of 22 square m , find the width of the verandah.Pieas give the ans with detailed steps .plz fast
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Answer:
1m
Step-by-step explanation:
The area of the room= 5×4 = 20 sq. m
Let the width be x.
Then,
(5+2x)(4+2x) - 22 = 20
or, 20 + 18x + 4x^2 -42 = 0
or, 4x^2 + 18x - 22 = 0
or, 2x^2 + 9x - 11 = 0
or, 2x^2 -2x +11x - 11 =0
or, 2x(x - 1) +11(x - 1) = 0
or, (x - 1)(2x + 11) = 0
From the above relation,
x = 1 or x = -11/2
negative answer cannot be accepted as a measure of width.
so, x = 1
The width of the verandah is 1 m.
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here you go
.
... that's a right answer please mark as brainlist.
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Girdharik:
thank u.
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