A and B together can do a piece of work in 12 days; B and C together can do it in 15 days. If A is twice as good a workman as C, in how many days A alone will do the same work?

Question

Writeacher · Answer

Wow! Seven posts in four minutes! And under different names!! Riddhi kersharwani, Anonymous, manpreet, and faizel ... there's no need to keep switching names.

drwls · Answer

Thanks for the alert, Writeacher. Please advise if he/she keeps showing up with new names. I've had enough

Writeacher · Answer

Will do.

Anonymous · Answer

@ Writeacher, and drwls If i want the help of experts , i don't need to change my name.. my name is always Anonymous.. i don't know why r u comparing me with Riddhi kersharwani, Anonymous, manpreet, and faizel ... all that..

Writeacher · Answer

What rubbish! All posts are coming from the same computer! Your IP address tells me so.

Steve · Answer

could it be a lab computer, used by many students?

Anonymous · Answer

yes, steve..thank u for understanding me..

Writeacher · Answer

The second "Anonymous" is not posting from the same IP address as the multiple-name one.

Steve · Answer

sounds like there's a line of students waiting to post their questions on Jiskha. Maybe they should get together and help each other!

Anonymous · Answer

now, plse answer my question...