एस एस सी स्नातक स्टार (प्रारंभिक परीक्षा) में पूंछे गए प्रश्न

16. A does half as much work as B in one-sixth of the time. If together they take 10 days to complete a work, how much time shall B alone take to do it?

(1) 70 days (2) 30 days
(3) 40 days (4) 50 days