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Bitcoin uses the Proof of Work (PoW) consensus mechanism, where miners solve complex mathematical puzzles to validate transactions and create new blocks. This mechanism ensures security and agreement among participants in a decentralized manner.
X men can complete the piece of work in 36 days and (X + 30) men can complete the same work in 15 days less than that of days taken by X men. Find the v...
Pawan and Qureshi can complete a task in 12 days, while Pawan and Rishi can finish the same task in 40/3 days. Initially, Pawan a...
‘A’ and ‘B’ can do a piece of work in 12 days and 20 days, respectively. They started working together but ‘A’ left after 6 days. Find the t...
The ratio of time taken by P, Q and R to complete work alone is 6:8:3 respectively. If all three together complete the work in 5 days, then find in how ...
The efficiency ratio of workers A and B is 15:17. If both A and B collaboratively finish a task in 30 days, how long would it take for A to complete the...
‘A’ and ‘C’ together can dig a hole in 8 hours while ‘A’, ‘B’ and ‘C’ together can dig the same hole in 6 hours. Find the time taken...
‘A’ and ‘B’ can complete a certain work in 16 days and 32 days, respectively. They started working together and worked till completion of the wo...
