जॉइन Examsbookउत्तर : 4. "67500 sq.m"
The breadth of a rectangular field is 75% of its length. If perimeter of the field is 1050 m, what will be th area of field ?5
प्र: The breadth of a rectangular field is 75% of its length. If perimeter of the field is 1050 m, what will be th area of field ?
- 165700 sq.mfalse
- 254500 sq.mfalse
- 378700 sq.mfalse
- 467500 sq.mtrue
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उत्तर : 4. "67500 sq.m"
व्याख्या :
Answer: D) 67500 sq.m Explanation: Let the length be 'l' and breadth be 'b'. b = l × 3/4__________(a) 2(l+b) = 1050 l+b = 525___________(b) From equations (a) and (b), l = 300m, b = 225 m Area = l × b = 300 × 225 = 67500 sq.m.