Question
P, Q and R can complete a work in 10 days. 20 days and
30 days, respectively, working alone. How soon can the work be completed if P is assisted by Q and R on alternate days?Solution
P, Q and R can do a piece of work in 10, 20 and 30 days respectively. Total work = 60 (LCM of 10, 20 and 30) P's efficiency = 60/10 = 6 Q's efficiency = 60/20 = 3 R's efficiency = 60/30 = 2 Pattern of work = PQ, PR, PQ, PR... Work done by PQ and PR in 2 days = (6 + 3) + (6 + 2) = 17 2 days => 17 units 2 × 3 = 6 days => 17 × 3 = 51 units remaining 9 units done by PQ in = work/efficiency = 9/(6 + 3) = 1 day Total time taken = 6 + 1 = 7 days ∴ P, Q and R complete the work together when P is assisted by Q and R on every alternate day in 7 days.
Which of the following statement is incorrect?
Which of the following is an example of an adjusting journal entry?
X Ltd. and Y Ltd. amalgamate to form a new company Z Ltd. X Ltd.’s assets are ₹50 lakh, liabilities ₹20 lakh. Y Ltd.’s assets are ₹30 lakh, li...
Financial Instruments such as Call Money, commercial paper, Bills of exchange, T-Bills, are traded in which of the following market?
Which of the following transaction will affect the current ratio?
Under Priority Sector Lending (PSL) guidelines, which category of banks is permitted a specific exemption to allocate up to 32% of their PSL target towa...
Once the Prospectus is filed with the Registrar of Companies, it is valid for how many days?
Which of the following is considered as nominal account?
The term depletion is used in relation to:Â
Ind AS 7 deals with which of the following: