Cubic decimeter?
There are 36 boys and 25 girls in Class Five (2). What percentage of girls are in the class?
3.9-meter-long, 6-meter-wide, 4-meter-high classroom, doors and windows, blackboard, area 18 square meter. What is a painting area? If 230 grams of lime is used per square meter, how many kilograms of lime is needed for a * * *?