Let’s first calculate what the apple trees produce: 30 trees * 150 kg/tree = <<30*150=4500>>4500 kg
Then let's calculate what the peaches produce: 45 trees * 65 kg/tree = <<45*65=2925>>2925 kg
We add these two masses: 4500 kg + 2925 kg = <<4500+2925=7425>>7425 kg
#### 7425