If A is thrice as fast as B and together can do a work in 24 days. In how many days A alone can do the work?	Choose the correct answer
A) 36	B) 42	C) 28	D) 32	E) 45
A’s one day’s work= 1/X   B’s one day’s work= 1/3x   A + B’s one day’s work= 1/x + 1/3x = 1/24   = 3+1/3x = 4/3x = 1/24   x = 24*4/3= 
<gadget id="calculator">24*4/3</gadget>
<output>32</output>
32   ANSWER:32
<result>D</result>
If A is thrice as fast as B and together can do a work in 24 days. In how many days A alone can do the work?