Fred was having a party and was responsible for buying canned soda.  He figured every guest would drink 2 sodas and he was inviting 15 people to the party.  The local store had a deal on sodas that week.  Every 6 pack of canned sodas was on sale for $3.00.  How much would it cost Fred to buy enough sodas for every guest to have 2 cans?
He planned on 2 sodas per guest and invited 15 guests so 2*15 =
<gadget id="calculator">2*15</gadget>
<output>30</output>
30 cans of soda.
Each pack of soda had 6 cans. He needed to buy 30 cans of soda for his guest so 30/6 = 
<gadget id="calculator">30/6</gadget>
<output>5</output>
5 packs of soda.
The soda was on sale for $3.00 per 6 pack and he was buying 5 packs so 3*5 = $
<gadget id="calculator">3*5</gadget>
<output>15</output>
15.00 for soda.

<result>15</result>