the correct question is
A triangle whose angles have measures x x+5 and x+10.How do you find the measure of each angle?
we know that
The Sum of internal angles of any triangle = 180∘
so
[x+(x+5)+(x+10)]=180---------------> 3x+15=180----------> 3x=165-------> x=55°
the answer is
the measure of each angle is
x=55°
x+5=60°
x+10=65°