Question
‘A’ alone can complete a work in 12 days. ‘B’
alone can complete the same work in 24 days. If ‘A’ and ‘B’ work together for 4 days, then the remaining work can be completed by ‘A’ alone in how many days?Solution
Let the total amount of work = 24 units {LCM of 12 and 24} Then, efficiency of ‘A’ = 24/12 = 2 units/day Efficiency of ‘B’ = 24/24 = 1 units/day Combined efficiency of ‘A’ and ‘B’ = 2 + 1 = 3 units/day Work completed by ‘A’ and ‘B’ together in 4 days = 3 × 4 = 12 units Remaining work = 24 – 12 = 12 units Time taken by ‘A’ alone to complete the remaining work = 12/2 = 6 days
In which of the following years was tea produced in Uttarakhand for the first time?
The Non-Cooperation Movement was launched in the year.
Priorities of the government in the fiscal area and its related policies and deviations are mentioned in which part of the budget document?
The violation of Fundamental Rights could be redressed by the Supreme Court under which of the following Articles?
Under the revamped PM Awas Yojana (Urban) 2.0 scheme with a total outlay of ₹3.06 lakh crore, what is the cost-sharing ratio between the Centre and St...
Which of the following is the autobiography of the first Indian President Dr. Rajendra Prasad?
As of July 2023, 137 unique products under 'One District, One Product' scheme has been notified from how many districts?
Who among the following served as the first Chief Justice of India?
Which Constitutional Amendment Act is known for introducing the Anti-Defection Law in India?
In which among the following states is the Vindhyachal Super Thermal Power Station located?
