IBPS RRB Office Assistant 26 Sep 2015 Paper

(2) Breadth of rectangle= x metre (let).
∴ Its length = (x + 2) metre
According to the question,
Area of rectangle
= 195 sq. metre
⇒ x (x + 2) = 195
⇒ x (x + 2) = 13 × 15
⇒ x (x + 2) = 13 × (13 + 2)
⇒ x = 13 metre
∴ Side of square
= (x + x + 2) metre
= (2x + 2) metre
= (2 × 13 + 2) metre
= 28 metre
∴ Diagonal of square
=√2× side = 28√2 metre