Asked by Son huw

the length of room is twice its breadth. if the area is 242 square meters then find out it's breadth
a) 11
b) 10
c) 12
d) 9
show ur workings?
Answered by Ms. Sue
Multiply each breadth by twice the breadth.

For instance, 9 * 18 = 162
Nope -- that's not the answer.
Answered by Reiny
width --- x
length --- 2x
x(2x) = 242
2x^2 = 242
x^2 = 121
carry on, what is the square root of 121 ?
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