উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।
ব্যাখ্যা ও সঠিক সমাধান
উত্তর:
44%
Let, one side of Rectangular is 100 mThe other side of Rectangular is 200 mSo, Present Area is = 100X200=20000 m2if increase 20% of both side of rectangular.Then, one side of Rectangular is= 100 +100×20100 = 120 m Other side of Rectangular is = 200 + 200×20100= 240 mAfter increasing the Rectangular area is = 120× 240 = 28800 m2increasing the Rectangular area is = 28800 - 20000 = 8800 m2So, % of increasing area is = 8800×10020000= 44%Ans: 44%.