The cost of transporting 80 bags of cement, each weighing 50 kgs, is $6000. What's the cost of transporting three times as many cement bags, each weighing 3/5 times as many kgs?
Three times as many cement bags is 3*80 = 
<gadget id="calculator">3*80</gadget>
<output>240</output>
240 cement bags.
If a bag of cement weighs 50 kg, 3/5 times as much weight is 3/5*50 = 
<gadget id="calculator">3/5*50</gadget>
<output>30</output>
30 kgs.
If the cost of transporting 80 bags of cement, each weighing 50 kgs, is $6000, the cost of transporting one bag of cement weighing 50 kg is $6000/80 = $
<gadget id="calculator">6000/80</gadget>
<output>75</output>
75.
Since a bag weighing 50 kgs costs $75 to transport, a bag weighing 30 kgs will cost 30* $75/50 = $
<gadget id="calculator">30*75/50</gadget>
<output>45</output>
45 to transport.
The cost of transporting 240 cement bags each weighing 30 kgs is $45*240 = $
<gadget id="calculator">45*240</gadget>
<output>10_800</output>
10800.

<result>10_800</result>