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Subject :IMO    Class : Class 6

The breadth of a rectangle is u m and the length is 4 times as long as its breadth. What is the perimeter of the rectangle?

A14u m
B(2u + 8) m
C9u m
D10u m

in my opinion the answer should be 9u m

Ans 1:

Class : Class 10
i think the answer is 10u as- breadth=u so length=4u perimeter=2(l+b)=2(4u+u)==2*5u=10u

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