Question
A, B and C alone can complete a work in 30, 60 and 45
days respectively. All of them started working together but after 3 days from start A left the job and after 7 more days B also left the job. So for how many days did C work?Solution
Let the total work = 180 units (LCM of 30, 60 and 45) Amount of work done by A alone in one day = 180/30 = 6 units Amount of work done by B alone in one day = 180/60 = 3 units Amount of work done by C alone in one day = 180/45 = 4 units Amount of work done by A, B and C together in 3 days = 3 × (6 + 3 + 4) = 39 units Amount of work done by B and C together in 7 days = 7 × (3 + 4) = 49 units Remaining work = 180 – 39 – 49 = 92 units So, the time taken by C alone to complete 92 units work = 92/4 = 23 days So, C worked for 23 + 3 + 7 = 33 days
After winning the 2024 US presidential election, Donald Trump became which number President of the United States?
In which year was the microfinance movement formally launched in India on a pilot basis?
As of Sep 2024, what is the current āunicornā status of Yulu?Ā
In which year, the Koya rebellion took place in the eastern Godavari tract?
Which of the following options accurately describes the structure of LEI digits?
In which state has the 'Kalaignar Sports Kit' initiative been launched, aiming to provide sporting kits to 12,000 village panchayats?
Which province is not under Ashoka territory?Ā
Each of the following questions consists of a word printed in capital letters, followed by four words or phrases. Choose the word or phrase that is most...
SBI has introduced Aadhaar-based enrolment for social security schemes, making it easier and more convenient for customers. The customers visiting Custo...
As per an RBI report āCurrency and Financeā, there is an increase in which of the following parameters?
Relevant for Exams:
