Question
How many countries participated in the 18th IOAA held in
2025?Solution
More than 300 students from 64 countries participated in the 10-day-long 18th International Olympiad on Astronomy and Astrophysics (IOAA), reflecting the global reach and importance of this academic event.
Atul, Qureshi, and Chintu can individually complete a certain task in 27 days, 30 days, and 36 days, respectively. They all begin working on the task to...
'B' and 'N' can collectively finish a task in 88 days, and 'N' and 'S' together can complete the same work in 66 days. If 'B' and 'S' work together, the...
"Arnav, Bhanu, and Chinu can finish a task in 18 days, 24 days, and 30 days, respectively. They all begin working together, but B...
X men can complete the piece of work in 45 days and (X + 46) men can complete the same work in 23 days less than that of days taken by X men. Find the v...
A and B can each finish a task in 32 days and 36 days respectively. They begin the task together, but after 12 days, A leaves. How long will it take for...
‘A’ and ‘B’ alone can do a certain work in 30 days and 40 days, respectively. Both started the work together but after ‘x’ days ‘A’ left...
X can work as fast as Y and Z together. X and Y together can finish the same task 3 times as fast as Z. If all three working together can finish the tas...
- ‘P’ takes 25 days to complete a piece of work. ‘Q’ is 25% more efficient than ‘P’. Find the time taken by them to complete 90% of the work toge...
5 men and 1 boy together can complete a work in 25 days. 3 men and 5 boys can together complete half of the same work in 10 days. Find the time taken by...
Q can do a work in 15 days and R can do the two-third work done by P and Q together in a day. If R completes the work in 18 days, how many days will it ...
