Question
Manoj can complete a work in 15 days working 8 hours in
a day and Santosh can complete it in 10 days working 9 hours in a day. If Manoj and Santosh together start working for 6 hours per day, in how many days will they complete the work?Solution
Let the efficiency of Manoj be M and that of Santosh be S. Total work to be done (according to Manoj) = 15 × M × 8  Total work to be done (according to Santosh) = 10 × S × 9 Work done by both are the same, => 15 × M × 8 = 10 × S × 9 => M/S = 3/4 Let the efficiency of Manoj and Santosh be 3 and 4 respectively. Working together, total efficiency = 3 + 4 = 7 Let them finish the work by D days. Total work to be done = 15 × M × 8 = 15 × 3 × 8 => 7 × D × 6 = 15 × 3 × 8 Time taken = 360/42 = 8 (4/7) days
On August 18, 2017, which Asian country launched its first cyber court specializing in handling Internet-related cases?
Which of the Indian enterpreneur has topped the 'IIFL Wealth Hurun India 40 & Under Self-Made Rich List 2022'?
The board of a cooperative society can be superseded or kept under suspension if:
1. There is negligence in the performance of duties.
Which of the following Indian cities is included in the list of 'UNESCO World Heritage Sites'?
 Which of the following is NOT eligible to use UPI for payments?
Which of the following festivals is celebrated as the birth anniversary of Guru Nanak Dev?
Match List-I with List-II
In _________, BR Ambedkar negotiated the Poona Pact with Mahatma Gandhi.
First education satellite launched by ISRO is _________.
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...
Relevant for Exams:
