Subject :IMO Class : Class 7
How many different rectangles, with natural numbers as side lengths, can be constructed so that the perimeter of each rectangle is 16?
A4
B6
C7
D9
B should be right answer
Ans 1:
Class : Class 8
But 4 and 4 is a square
Ans 2:
Class : Class 8
The answer is option A ,4 as all squares are rectangle because all sides are parallel
Ans 3:
Class : Class 7
B is the right answer
Ans 4:
Class : Class 10
The answer is option A because the rectangles formed will be of length 1 and 7, 2 and 6, 3 and 5, 4 and 4. Since the sum of these is 8 and perimeter=2(l+b) thus 2(8) = 16