If there is a ratio of 3 to 2, than how many are there in the first number if there is a total of 80?

  48

Step-by-step explanation:

The total number of "ratio units" is 3+2 = 5, so each stands for 80/5 = 16 items. Then 3 ratio units stand for 3×16 = 48 items.

  3 : 2 = 48 : 32

The first number is 48.

11

step-by-step explanation:

32.50-7.50=25

225/25=11

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