NIACL Model Paper 5 with solutions for free online practice

We know the area of rectangle = L x B
Suppose the length and breadth of therectangle are x and y respectively.
From I. x - y = 4. Hence I is not sufficient.
From II. Diagonal of the rectangle
= √x2+y2 = 9
∴ x2+y2 = 81
Hence, II is also not sufficient to answer thequestion.
From I and II.
(x−y)2 = x2+y2 - 2xy
or , 2xy = x2+y2 - (x−y)2
= 81 - (4)2 = 65
∴ xy =

65

2

= 32.5