A class of 20 girls and 30 boys arranged a picnic. However, only 30% of the girls and 40% of the boys attended the picnic. What percent of the class attended the picnic?

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

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PSC Bangladesh Navy Storeman গণিত শতকরা হ্রাস-বৃদ্ধি