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 :
Options:
A . 295 m2
B . 299 m2
C . 300 m2
D . 375 m2
Answer: Option B 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
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