The total age for the three friends is 40*3 = <<40*3=120>>120
If Molly's age is 30, then Jared and Hakimi have a total age of 120-30 = 90.
Let's say the age of Hakimi is x.
Since Jared is 10 years older than Hakimi, Jared is x+10 years old.
Jared and Hakimi's total age is x+(x+10) = 90
This translates to 2x=90-10
2x=80
Hakimi's age is x=80/2
This gives us x=<<40=40>>40, which is Hamkimi's age.
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