1) X and Y can do a piece of work in 18 days. Y and Z together can do it in 24 days. if X is 2 times as good a work guy as Z, find in what time Y alone can do it.
A) 10 days
B) 36 days
C) 26 days
D) 30 days
2) X,Y,Z together can complete a work in 24 days, X and Z together can do 2 times as much as Y does. Also, X and Y can do 3 times as much as Z does. Find the time taken by each one to complete the work.
A) 72 days
B) 50 days
C) 65 days
D) 44 days
3) X does half as much work as Y in (1/3)rd of the time. If together they take 20 days to finish a job, how much days shall Y take to do it?
A) 31 days
B) 45 days
C) 50 days
D) 67 days
4) X,Y and Z together can earn money Rs.270 per day while X and Z together earn money Rs.115 and Y and Z together can earn money Rs.167. What is the daily earnings of Z?
A) Rs.12
B) Rs.16
C) Rs.10
D) Rs.20
5) If 6 guys or 12 girls can do a piece of work in 21 days. Then in how many days 5 guys and 8 girls will do the same work?
A) 7 days
B) 10 days
C) 1 day
D) 14 days
A) 10 days
B) 36 days
C) 26 days
D) 30 days
2) X,Y,Z together can complete a work in 24 days, X and Z together can do 2 times as much as Y does. Also, X and Y can do 3 times as much as Z does. Find the time taken by each one to complete the work.
A) 72 days
B) 50 days
C) 65 days
D) 44 days
3) X does half as much work as Y in (1/3)rd of the time. If together they take 20 days to finish a job, how much days shall Y take to do it?
A) 31 days
B) 45 days
C) 50 days
D) 67 days
4) X,Y and Z together can earn money Rs.270 per day while X and Z together earn money Rs.115 and Y and Z together can earn money Rs.167. What is the daily earnings of Z?
A) Rs.12
B) Rs.16
C) Rs.10
D) Rs.20
5) If 6 guys or 12 girls can do a piece of work in 21 days. Then in how many days 5 guys and 8 girls will do the same work?
A) 7 days
B) 10 days
C) 1 day
D) 14 days