Eva learns for two semesters in a year. In 2019, she scored ten more marks in maths in the first semester than the second, 15 marks less in arts, and 1/3 marks less in science in the first semester than the second. If she got 80 marks in maths in the second semester, 90 marks in arts, and 90 in science, what's the total number of her marks in all the semesters?
In the first semester, she scored 80+10 = 
<gadget id="calculator">80+10</gadget>
<output>90</output>
90 marks in maths.
She also scores 90-15 = 
<gadget id="calculator">90-15</gadget>
<output>75</output>
75 marks in arts in the first semester.
She scored 1/3 marks less in science in the first semester than the second, which is 1/3*90 = 
<gadget id="calculator">1/3*90</gadget>
<output>30</output>
30.
Her score in science in the first semester is 90-30 = 
<gadget id="calculator">90-30</gadget>
<output>60</output>
60.
The total for the first semester is 90+75+60 = 
<gadget id="calculator">90+75+60</gadget>
<output>225</output>
225.
The total for the second semester is 90+90+80 = 
<gadget id="calculator">90+90+80</gadget>
<output>260</output>
260.
The combined marks for all the semesters in 260+225 = 
<gadget id="calculator">260+225</gadget>
<output>485</output>
485.

<result>485</result>