...it take B and С together' to do the work ? How many days will it take A, B, arid C together ? 87. A and B can do a piece of work in 10 days, A and C in 12 days, B and 0 in 15 days. How long will it take them to do the work if they all work together ? 88. A sets out...

...take В and C together to do the work ? How many days will it take A, B, and C together ? 87. A and В can do a piece of work in 10 days, A and C in 12 days, В and C in 15 days. How long will it take them to do the work if they all work together ? 88. A sets...

...of 20 cents a dozen, and gained 24 cents by the transaction. How many of each kind did he buy ? 25. A and B can do a piece of work in 10 days, A and С in 12 days, and B and С in 20 days. In how many days can each of them alone do it ? 26. A resolution...

...each. 46. If | of % of a ship cost $70,000, what is ^- of it worth ? 47. Divide -4j — | by ^-. 48. A. and B. can do a piece of work in 10 days. A. can do ^ as much as B. In what time can each do the work? 49. From f of ^ take A of H50. Find the value...

...pile of wood in x hours. If James does § as much as John, what part of the work does each do ? 12. A and B can do a piece of work in 10 days. If A does f as much as B, what part of the work does each do? 13. How does the entire amount of work...

...pile of wood in x hours. If James does f as much as John, what part of the work does each do ? 12. A and B can do a piece of work in 10 days. If A does f as much as B, what part of the work does each do? 13. How does the entire amount of work...

...= £J of the work. Hence A. can do £ $ in ff or 4^ days. Find time required by B. and C. 425 4. A. can do a piece of work in 10 days, A. and C. can do it in 7 days, and A. and B. can do it in 6 days. How long will it take them all to do it? 5....

...How much has each ? Ans. A $12, B $6, C $7. 14. A can dig a ditch in 6 days, B in 8 days, and C in 12 days. How long will it take them to do the work if all work together ? Ans. 2f days. 15. A can do a piece of work in 4 days, B can do it in 6 days, and...

...third is subtracted from twice the first, the remainder will be -J- of the second. Find the numbers. 6. A and B can do a piece of work in 10 days ; A and C can do it in 8 days ; and B and С can do it in 12 days. How long will it take each to do it alone...

...a piece of work in 4 days, B in 5 days, and C in 6 days. In what time can they together do it? 139. A and B can do a piece of work in 10 days, and A, B, and C in 8 days. How long will it take C alone to do the work ? 140. A, B, and C can do a...