/sci/ - Science & Math

Anonymous Tue Sep 1 11:49:24 2020 No.12073752 [View]
File: 137 KB, 997x238, 2A1335C2-ED92-43FE-B97F-8C9B20AC6E96.jpg [View same] [iqdb] [saucenao] [google]

I’m having a hard time understanding this problem. I know the answer is the harmonic mean but I don’t know why. 1/a is the rate at which the first half is filled and 1/b is the rate at which the second is filled. So shouldn’t 1/a+1/b be the rate at which the whole pool is filled per hour? According to the internet 1/a+1/b is the rate at which half a pool is filled per hour when the pool is not divided.

Advanced search
Text to find
Subject [?]Search by post subject. Leave empty for any.
Username [?]Search for user name. Leave empty for any user name.
Tripcode [?]Search for tripcode. Leave empty for any.
Email [?]Search by email. Leave empty for any.
Filename [?]Search by image filename. Leave empty for any.
From Date [?]Enter what date to start searching from. Format is YYYY-MM-DD
To Date [?]Enter what date to start searching until. Format is YYYY-MM-DD
Image hash
Search in	All Posts OPs Only
Deleted posts	Show all posts Show only deleted posts Only show non-deleted posts
Internal posts	Show all posts Show only internal posts Show only archived posts
Order	New posts first Old posts first
Capcode	All Posts Only by Users Only by Mods Only by Admins Only by Developers
Results	Posts Threads
Action	[ Simple ]

Navigation
View posts	[+24]	[+48]	[+96]

/sci/ - Science & Math

Search: