Amonth ago you and your family moved house, so you had to go to a new school. write a letter to your former classmate about the following points: - what your new school is like and what you like/dislike abot it; - what the techers are like; - your new friend; - the thins you miss about your previous school. write a letter of at least 100 words. do not write any dates and adresses.
1/4 бас/час - наполняется через і трубу
1/6 бас/час - через іі трубу
1/4+1/6 =5/12 (бас/час) - наполняется двумя трубами
1-5/12=7/12 - бассейна останется наполнить после 1 часа совместной работы двух труб.