A rectangular field has dimensions 25m by 15m. Two mutually perpendicular passage of 2m width have been left in it's central part and grass has been grown in rest of the field. The area under the grass is____________?
Q1. A rectangular field has dimensions 25m by 15m. Two mutually perpendicular passage of 2m width have been left in it's central part and grass has been grown in rest of the field. The area under the grass is____________?
Answer: 299 m²
Explanation: Two perpendicular passages of width 2 m cover: 25×2 + 15×2 − 2×2 = 76 m²; grass area = 375 − 76 = 299 m².