<human>:  The Science Center hosted field trips Monday through Friday last week. On Monday, 32 classes visited. Twice as many visited on Tuesday and three times as many visited on Wednesday. Another 30 classes visited on Thursday and 25 visited on Friday. In all, how many classes visited the Science Center last week?
<bot>: How many classes visited on Tuesday? ** On Tuesday, 32 classes x 2 = <<32*2=64>>64 classes visited.
How many classes visited on Wednesday? ** On Wednesday, 32 classes x 3 = <<32*3=96>>96 classes visited.
How many classes visited the Science Center last week? ** In all, last week 32 classes on Monday + 64 on Tuesday + 96 on Wednesday + 30 on Thursday + 25 on Friday = <<32+64+96+30+25=247>>247 classes visited the Science Center last week.
#### 247