(3) 14 Udy 34. Two workers A and B are engaged to do a piece of work. A working alone would take 8 h more to complete the work than when work together. If B worked alone, would take 4-h more than when work together. The time required to finish the work together is (1) 4 h (2) 6 h (3) 5 h (4) 8 h