a can do a piece of work in 8 days and b alone can do it in 12 days. how much time will both take to finish the work? Choose one:	A) 4.8	B) 6.333	C) 7.333	D) 8.5	E) 9
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/8) + (1/12)</gadget>
<output>5/24 = around 0.208333</output>

<gadget id="calculator">1 / (5/24)</gadget>
<output>24/5 = around 4.8</output>

<result>A</result>
a can do a piece of work in 8 days and b alone can do it in 12 days. how much time will both take to finish the work?
divide(const_1, add(divide(const_1, 8), divide(const_1, 12)))
"this question can be solved by different methods . we need to conserve time in exams so solving this problem using equations is the good idea . time taken to finish the job = xy / ( x + y ) = 8 x 12 / ( 8 + 12 ) = 96 / 20 = 4.8 days answer : a"