a spirit and water solution is sold in a market. the cost per liter of the solution is directly proportional to the part ( fraction ) of spirit ( by volume ) the solution has. a solution of 1 liter of spirit and 1 liter of water costs 50 cents. how many cents does a solution of 1 liter of spirit and 3 liters of water cost?	Select the correct option
A) 13 B) 33 C) 56 D) 50 E) 52
<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">50 * (1/4)</gadget>
<output>25/2 = around 12.5</output>

<gadget id="calculator">(25/2) * 4</gadget>
<output>50</output>

<result>D</result>
a spirit and water solution is sold in a market. the cost per liter of the solution is directly proportional to the part ( fraction ) of spirit ( by volume ) the solution has. a solution of 1 liter of spirit and 1 liter of water costs 50 cents. how many cents does a solution of 1 liter of spirit and 3 liters of water cost?
multiply(multiply(50, divide(1, add(1, 3))), add(1, 3))
c . 50 cents yes , ensure that you understand the relation thoroughly ! cost per liter = k * fraction of spirit 50 cents is the cost of 2 liters of solution ( 1 part water , 1 part spirit ) . so cost per liter is 25 cents . fraction of spirit is 1 / 2 . 25 = k * ( 1 / 2 ) k = 50 cost per liter = 50 * ( 1 / 4 ) ( 1 part spirit , 3 parts water ) cost for 4 liters = 50 * ( 1 / 4 ) * 4 = 50 cents d . 50 cents