Fractions and Percentages word problem

[NadJ]

Stuck on no. 12. Answer is apparently 2/5. Teacher stumped.

Thanks

 

[Deleted member 4993]

Stuck on no. 12. Answer is apparently 2/5. Teacher stumped.

Thanks

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[Dr.Peterson]

The third picture shows a certain angle; it will divide any circle with that center in the same way. We are told the shaded part is 60% of the whole circle; so the small circle is also divided in the same fraction. Can you see that?

Then what fraction of what fraction is shaded in the middle picture?