Question
A and B can complete a job together in 30 days; B and C
can complete the same job together in 25 days, while C and A can complete the same job together in 10 days. In how many days will A, B, and C be able to complete the same job alongside D, who is only 75% as efficient as C?Solution
A+B= 30 B+C=25 C+A=10days LCM of 30, 25, and 10 = 150 A+B    B+C     C+A 30       25       10           150  5         6       15 Total 2(A+B+C) = 5+6+15+=26 A+B+C =13 C = 13-5 =8 D= 8×75/100 =6 NOW A+B+C+D = 13+6=19 SO total days = 150/19 =7(17/19) days
- In which ocean is the world's deepest point, the "Mariana Trench," located?
Which of the following nations is not a member of South Asian Association for Regional Cooperation (SAARC)?
I. Afghanistan
II. Nepal
...Following a recommendation by the National Financial Reporting Authority, which investor group was directed by SEBI in August 2024 to value their AT-1 b...
Tropical cyclones originate over which of the following regions?
Which company has launched an ALT ID solution for guest checkout for each card to replace the real card numbers provided by cardholders during online tr...
In which of the following years was the Goods and Services Tax (Compensation to States) Bill passed?
At present molasses attract zero export duty.How much export duty is the Centre now going to impose on molasses to ensure adequate domestic quantities f...
- Cinnabar is primarily an ore of which element?
Who was awarded the Man Booker Prize in 2023?
Which mutual fund launched India’s first MSCI India ETF?