<human>:  Carla is making smoothies. If she uses 500 ml of watermelon puree and 100 ml of cream, how many 150 ml servings can she make?
<bot>: How many ml of watermelon puree and cream are used? ** First find the total volume of the smoothie mix: 500 ml + 100 ml = <<500+100=600>>600 ml
How many servings can Carla make? ** Then divide the total volume by the volume per serving to find the number of servings: 600 ml / 150 ml/serving = <<600/150=4>>4 servings
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