A boy says ," I have as many brothers as sisters. " His sister says ," I have twice as as many brothers as sisters ." How many brothers and sisters are there in this family?
A boy has as many sisters as brothers , and his sisters have half as many sisters as brothers. How many boys and girls are there in the family.
Ted bought 3 L of milk. His brother drank 2500 mL. How many milliliters of milk did Ted have left over?