Question

the average of 20 results is 30 and that of 30 other result is 20. what is the average of all the result​

Answer 1

ᴀᴠᴇʀᴀɢᴇ ᴏғ 30 ʀᴇsᴜʟᴛs = 20.

ᴀᴠᴇʀᴀɢᴇ ᴏғ ᴏᴛʜᴇʀ 20 ʀᴇsᴜʟᴛs=30

. sᴜᴍ ᴏғ ᴏᴛʜᴇʀ 20 ʀᴇsᴜʟᴛs=20*30=600.

Answer 2

Answer:

average of 30 results = 20. average of other 20 results=30. sum of other 20 results=20*30=600.