A rectangular field has dimensions 25 m by 15 m. Two mutually perpendicular passages, 2 m wide have been left in its central part and grass has been grown in rest of the field. The area (in sq. metres) under the grass is :

A. 295 m²

B. 299 m²

C. 300 m²

D. 375 m²

Answer: Option B

Solution(By Examveda Team)

Area of the field :
= (25 × 15) m²
= 375 m²
Area of the passages :
= (25 × 2 + 15 × 2 - 2 × 2) m²
= 76 m²
Area under grass :
= (375 - 76) m²
= 299 m²