a can do a piece of work 60 days. b can do work in 90 days. in how many days they will complete the work together?	Pick:
A) 36 days B) 32 days C) 19 days D) 17 days E) 18 days
<gadget id="calculator">1 / 60</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">1 / 90</gadget>
<output>1/90 = around 0.011111</output>

<gadget id="calculator">(1/60) + (1/90)</gadget>
<output>1/36 = around 0.027778</output>

<gadget id="calculator">1 / (1/36)</gadget>
<output>36</output>

<result>A</result>
a can do a piece of work 60 days. b can do work in 90 days. in how many days they will complete the work together?
divide(const_1, add(divide(const_1, 60), divide(const_1, 90)))
lcm = 180 , ratio = 60 : 90 = 2 : 3 no of days = 180 / ( 2 + 3 ) = 180 / 5 = 36 days answer : a