Question
βPβ, βQβ, and βRβ can
complete a task in 10 days, 15 days, and 20 days, respectively. βPβ starts the task alone and is joined by βQβ on the second day. On the third day, βQβ is replaced by βRβ, and again on the fourth day, βPβ works alone. The process repeats in the same manner. Find the total time taken to complete the task. (Round off to two decimal places)Solution
ATQ,
Let the total work be the LCM of [10, 15, 20] = 60 units. Efficiency of βPβ = 60/10 = 6 units/day. Efficiency of βQβ = 60/15 = 4 units/day. Efficiency of βRβ = 60/20 = 3 units/day. Work done on the first day = 6 Γ 1 = 6 units. Work done on the second day = (6 + 4) Γ 1 = 10 units. Work done on the third day = (6 + 3) Γ 1 = 9 units. Total work done in the first three days = 6 + 10 + 9 = 25 units. Remaining work = 60 β 25 = 35 units. Time taken to complete the remaining work = (6/6) + (10/10) + (9/9) + (10/17) β 3 + (10/17) β 3.59 days. Total time = 3 + 3.59 = 6.59 days.
Where the prescribed period for any suit, appeal or application expires on a day when the court is closed, the suit, appeal or application may be instit...
In accordance with the provisions of the Contract Act, when Ajay delivers a rough diamond to Sunil, a jeweller, for cutting and polishing, and the serv...
Every transfer of immovable property made with intent to defeat or delay the creditors of the transferor shall be:
What are the various types of share capital of a company limited by shares?
Under the Arbitration and Conciliation Act, 1996, what is the primary purpose of arbitration?
What is e-commerce?
Β According to the Consumer Protection Act, 2019, what is the composition of the National Commission?
When is an offence under Section 138 of Negotiable Instruments Act 1881 compoundable?Β
Which of the following is not an exception to the general principle that βhearsay evidence is no evidenceβ ?
"Being in possession of false weight or measure" is a punishable offence:-
Relevant for Exams:
