What will be the cost of building to paint which area equal to 196 sq ft, if the price per foot of building is Rs. 15? Choose the correct choice from the following options.
A) 120  B) 240  C) 360  D) 380  E) 840

Rationale: let the side of the square plot be a ft . a 2 = 196 = > a = 14 length of the fence = perimeter of the plot = 4 a = 56 ft . cost of building the fence = 56 * 15 = rs . 840 . answer : e
Answer: E