A can do a piece of work in 20 days.B can do the same in 15 days.they both together work for 6 days,then B is replaced by C who works with A for next 4 days & finished it.in how many days C alone can do the same work?
Answers were Sorted based on User's Feedback
Answer / dipesh
Work done by A in one day is 1/20
Work done by B in one day is 1/15
Work done by A and B in 6 days is (1/20+1/15)*6
Work done by A and C in 4 days is (1/20+1/x)*4 // assuming that C does the complete work in x days)
Now we need to find out the value of x from following
(1/20+1/15)*6 + (1/20+1/x)*4 = 1
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / archana
Answer: C can complete the work in 5 days
work done by A in one day= 1/20
work done by B in one day= 1/15
work done by A and B together in one day= 1/6
work done by A and C together in one day= 1/4
work done by C alone in one day= work done by A and C in one day - work done by A in one day
=(1/4)-(1/20)= 1/5
work done by C alone= 5 days
Is This Answer Correct ? | 0 Yes | 2 No |
what is the difference between deviation & change control? what is trouble shooting?
Find the total number of squares in 1/4 of chess board ?
A thief steals half the total no of loaves of bread plus 1/2 loaf from a bakery. A second thief steals half the reaming no of loaves plus 1/2 loaf and so on. After the 5th thief has stolen there are no more loaves left in the bakery. What was the total no of loaves did the bakery have at the beginning.
What is the number of zeros of the product of the first 100 numbers ?
37 Answers Deshaw, RR Donnelley, RRDonnelley, Wipro,
Girish invested a certain amount at the rate of 8% p.a. for 6 year to obtain an amount of Rs. 28046.How much amount did Girish obtain as simple interest?
1. Which is the greatest 3 u/root 7, 6 u/r 5, 2 u/r 20 is
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group? (a) Earth (b) Moon (c) Saturn (d) Pluto (e) Venus
Y catches 5 times more fishes than X. If total number of fishes caught by X and Y is 42, then number of fishes caught by X?
0 Answers BPCL Bharat Petroleum, Sonata,
A 10 digit number N has none of its digits reapeating. The first two digits me N are divisible by two, the first 3 digits are divisible by 3, and the first 4 digits are divisible by 4 and so on such that the entire number is divisible by 10. find N.
Hi Friends, I am Nibeditha and new to this site but really appreciated the way ppl help each other here. My question is ..I have around 1.5 yrs of testing exp and got a call from NDS on Monday, bangalore . Can anybody plz provide me the apptitude questions asked in the written test? I am weak in apptitude :(......plzzzz help...waiting for you reply at the earliest
What can six men do at a time which six women cant do?
hello..i hav cleared SBI written exm..i am a post graduate in english..wht type of questions they may ask me at the interview? plz help.
0 Answers ICICI, State Bank Of India SBI,