Advertisements
Advertisements
Question
Choose the most appropriate option.
A can do a piece of work in 8 days and B alone can do the same work in 10 days. A and B agreed to do the work together for Rs. 720. With the help of C, they finished the work in 4 days. How much C is to be paid?
Options
Rs. 80
Rs. 70
Rs. 82
Rs. 72
Advertisements
Solution
Rs. 72
Explanation:
C's 1-day work`=1/4-(1/8+1/10)`
`=1/4-9/40⇒1/40.`
A's wages: B's wages: C's wages`=1/8: 1/10 : 1/40=5:4:1`
∴ C's share (for 4 days)`=720/10xx1=72`
= Rs. 72
APPEARS IN
RELATED QUESTIONS
Arun can climb a Coconut tree by 1.5 feet by each lift; however, he slips 0.5 feet every time he makes the next lift. How many individual lifts he will have to reach the top of the Coconut tree of 18.5 feet?
A group of men decided to do a job in 8 days. But since 10 men dropped out every day, the job got completed at the end of the 12th day. How many men were there at the beginning?
A water tank has eight pipes fitted into it. Pipes are of two types: Green Pipe and Red Pipe. Green pipes are used to fill the tank and the Red pipes are used to empty the tank. Every Green pipe can fill the tank in 12 hours and every Red pipe can empty it in 36 hours. On opening all the pipes an empty tank is filled in 3 hours. The number of Red pipe is
A, B and C can do a piece of work in 20, 30 and 60 days, respectively. In how many days can A do the work, if he is assisted by B and C on every third day?
Two pipes P and Q can fill a tank in 15 min and 20 min, respectively. Both the pipes are opened together but after 4 min, pipe P is turned off. What is the total time required to fill the tank?
A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in:
P can complete a work in 12 days working 8 hours a day. Q can complete the same work in 8 days working 10 hours a day. If both P and Q work together, working 8 hours a day, in how many days can they complete the work?
Puja is 30% less efficient than Poonam. If Poonam takes 20 days to do a job, how many days would Puja take to do the work.
8 men can finish half of the work in 3 days. If the remaining work is to be completed in 2 days. then the no. of additional men required are?
B is `4/3` times as efficient as A. If A can complete `5/8`th of a given task in 15 days, what fraction of the same task would remain incomplete if B works on it independently for 10 days only?
