Hey!

I think the answer is Wednesday.

We know that :

Mon=80, Tu=30, wed=100, thu=120, fri=70

So if we sum up we can conclude that the total number is 400:

80+30+100+120+70=400

And also we know that a circle is 360°.

Monday occupies: 80/400÷X/360 -->X=72° of the circle.

Sunday Tuesday occupies:3/40÷X/360

–>X=27°

Wednesday occupies:100/400÷X/360

–>X=90°

And you can calculate the rest of the days like this.

We understand based on the piechart that none of the days shown occupy 90° or exactly 1/4 of the circle.

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Thank you so much … I forgot to think it from the degree of the circle

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