Question
A is twice efficient as B and B can do a piece of work
in 40 days. B started the work and after a few days A joined him. They completed the work in 32 days. From the starting, for how many days they worked together?Solution
A B Efficiency 2 : 1 B can do this job in 40 days so let total work = 1×40 = 40 units So let A work alone for x days and they work together for remaining i,e. (32-x) Hence 1×x+3(32-x) = 40 x +96 - 3x = 40 56 = 2x So x = 28 days So they work togethr for (32-x) i.e . 4 days
Which new sports will be introduced in the 2028 Summer Olympics in Los Angeles?
- During which 1929 session was the aim of 'Poorna Swaraj' (complete independence) adopted by the Indian National Congress?
If a startup that raises $1 billion in a single round of funding it is called?
- What type of organism causes Ringworm?
Consider the following statements with respect to the directions given by RBI regarding the whole time directors?
I. In a move to strengthen gove...
Who is the only Indian woman featured in Time Magazine's Women of the Year 2025 list?
Which company won the Bharat Startup Grand Challenge 2025?
The Places of Worship (Special Provisions) Act was enacted in which year?
- Which private space company launched the Fram-2 Mission that involved humans traveling over Earth's poles in a commercial spacecraft?
Dr. Rajendra Prasad was awarded the Bharat Ratna in which year?
Relevant for Exams:
