15 men take 21 days of 8 hrs. each to do a piece of work. how many days of 4 hrs. each would it take for 21 women if 3 women do as much work as 2 men?	Choose the correct option:
A) 30
B) 20
C) 15
D) 25
E) 45
<gadget id="calculator">15 * 21</gadget>
<output>315</output>

<gadget id="calculator">315 * 8</gadget>
<output>2_520</output>

<gadget id="calculator">21 * 4</gadget>
<output>84</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">84 * (2/3)</gadget>
<output>56</output>

<gadget id="calculator">2_520 / 56</gadget>
<output>45</output>

<result>E</result>
15 men take 21 days of 8 hrs. each to do a piece of work. how many days of 4 hrs. each would it take for 21 women if 3 women do as much work as 2 men?
divide(multiply(multiply(15, 21), 8), multiply(multiply(21, 4), divide(2, 3)))
"let 1 man does 1 unit / hr of work 15 m in 21 days of 8 hrs will do ( 15 * 21 * 8 ) units 3 w = 2 m 1 w = ( 2 / 3 ) units / hr 21 w with 4 hrs a day will take ( 15 * 21 * 8 ) / ( 21 * 4 * ( 2 / 3 ) ) days = > 45 days answer : e"