A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. What is the percentage of decrease in area? (একটি তোয়ালে ব্লিচ করার পর দেখা গেল যে এটির দৈর্ঘ্য ২০% এবং প্রস্থ ১০% হ্রাস পেয়েছে। ক্ষেত্রফল শতকরা কত শতাংশ হ্রাস পেয়েছে?)

গণিত শতকরা হ্রাস-বৃদ্ধি Bangladesh Navy — Upper Division Assistant LGD SAE (Civil) - 2026 BSCIC Technical Officer - 2026 Bangladesh Navy — Upper Division Assistant - 2026 BB Officer (General) - 2019 ECS – Upper Division Assistant - 2018 BB Officer (General) - 2018 Pre-Primary Teacher - 2014 SJIBL MTO - 2011 Rupali Senior Officer - 2010 Dhaka Bank MTO - 2004 SIBL Officer - 2004 DOR Sub-Registrar - 2003 Premier Senior Officer - 2003

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গণিত শতকরা হ্রাস-বৃদ্ধি Bangladesh Navy Storeman