Because he’s taxed by his home planet, Mork pays a tax rate of 10% on his income, while Mindy pays a rate of 20% on hers. If Mindy earned 3 times as much as Mork did, what was their combined tax rate?
Choose the correct choice from the following answers:
A) 32.5% B) 17.5% C) 20% D) 36% E) 37.5%
Say Morks income is - 100   So tax paid will be 10   Say Mindys income is 3*100= 
<gadget id="calculator">3*100</gadget>
<output>300</output>
300   So tax paid is 20% * 300= 60   Total tax paid = 10+60= 
<gadget id="calculator">10+60</gadget>
<output>70</output>
70.   Combined tax % will be 70/100+300= 15.5%
<result>B</result>
Because he’s taxed by his home planet, Mork pays a tax rate of 10% on his income, while Mindy pays a rate of 20% on hers. If Mindy earned 3 times as much as Mork did, what was their combined tax rate?