A report of 100 pages is to be typed by three typists. Typist A can type 100 pages in 10 hours. Typist B can type the same pages in 20 hours. and Typist C can type in 25 hours, All the three typist started typing at 09:00 A.M. At 01:00 P.M., Typist A stopped typing. The other two typist finished the job Approximately at what time the report was typed ?
Three men A, B, C together completed a work, A worked for 5 days, B for 7 days and C for 9 days. The ratio of their daily wages is 4 : 3 : 2, and their total income is Rs. 1,180. The total income of B and C for one day is
A man, a woman or a boy can do a piece of work in 3, 4 and 12 days respectively. How many boys must assist one man and one woman to do the work in one days ?