The age of Jeremy three years from now will be 40+3 = <<40+3=43>>43 years

Since Sebastian age is four years more than Jeremy's, Sebastian is currently 40+4 = 44 years.

In three years, Sebastian will be 44+3 = <<44+3=47>>47 years old

The total age of Jeremy and Sebastian in three years will be 47+43 = <<47+43=90>>90

If the total age of Jeremy, Sebastian and Sophia in three years is 150, then Sophia's age in three years will be 150-90 = <<150-90=60>>60

# Answer

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The sum of the ages of Jeremy, Sebastian and Sophia in three years is 150. Currently, Sebastian is 4 years older than Jeremy. If Jeremy's age is 40, calculate Sophia's age three years from now?
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60
The sum of the ages of Jeremy, Sebastian and Sophia in three years is 150. Currently, Sebastian is 4 years older than Jeremy. If Jeremy's age is 40, calculate Sophia's age three years from now?
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