P can do a piece of work in 9 days. Q is 50% more efficient than P. The number of days it takes

Q to do the same piece of work is?

What is 2/3 of 9?

2/3 of 9 is 6

To find out how many days it takes for Q to do the same piece of work, we need to calculate Q's efficiency first.

Given that Q is 50% more efficient than P, we know that Q's efficiency is 100% + 50% = 150% of P's efficiency.

Since P can do the work in 9 days, this means that P's efficiency is 100/9 = 11.11% per day.

Now, to find Q's efficiency, we need to calculate 150% of P's efficiency:

Efficiency of Q = 150% * Efficiency of P = 150% * 11.11% = 16.67% per day.

Now, to find the number of days it takes for Q to do the same piece of work, we divide 100% by Q's efficiency:

Number of days for Q = 100% / Efficiency of Q = 100 / 16.67 = 6 days.

So, Q can do the same piece of work in 6 days.