Let the total work = 240 units (LCM of 40, 60 and 48) Amount of work done by Karan alone in one day = 240/40 = 6 units Amount of work done by Arjun alone in one day = 240/60 = 4 units Amount of work done by Krunal alone in one day = 240/48 = 5 units Amount of work done by Karan, Arjun and Krunal together in 3 days = 3 × (6 + 4 + 5) = 45 units Amount of work done by Arjun and Krunal together in 5 days = 5 × (4 + 5) = 45 units Remaining work = 240 – 45 – 45 = 150 units So, the time taken by Krunal alone to complete 60 units work = 150/5 = 30 days So, Krunal worked for 30 + 5 + 3 = 38 days
The narrow zone of contact between the lithosphere, hydrosphere and atmosphere where natural vegetation and wildlife exist is called the:
Article 43: The State shall endeavour to promote cottage industries on an individual or cooperative basis in rural areas, it is a Directive based on ___...
Which of the following is/are not a/the renewable source(s) of energy?
(i) Coal
(ii) Bio-mass
(iii) Sunlight
...Which is the most widely accepted model to explain the formation and evaluation of the solar system?
Consider the following statement about World Happiness Report :
1. Happiness rankings are based on UNDP Reports.
2. Countries are ranked a...
Which Union Ministry announced the launch of the 'Amazon Future Engineer Programme?'
Which organization currently implements the Pragati Scholarship scheme for girl students pursuing diploma or degree courses in technical and engineering...
In T20 cricket matches, a bowler can bowl a maximum of _______.
Under which section of the Right to Information (RTI) Act is the appointment process outlined for the Chief Information Commissioner and other Informati...
Who has been reappointed as the 15th Attorney General of India in July 2020?