Question

the sum of 8 numbers is 136.5 the sum of these numbers is

Answer 1

Answer:

ʟᴇᴛ 's ᴄᴏɴsɪᴅᴇʀ ᴛʜᴇ ɴᴜᴍʙᴇʀs ᴛᴏ ʙᴇ

x, x, x, x……x

ɪғ ᴛʜᴇɪʀ ᴍᴇᴀɴ ɪs ᴛʜᴇɴ ᴀᴄᴄᴏʀᴅɪɴɢ ᴛᴏ ᴛʜᴇ ᴍᴇᴀɴ ғᴏʀᴍᴜʟᴀ ᴡʜɪᴄʜ ɪs ɢɪᴠᴇɴ ʙʏ

ᴍᴇᴀɴ = (sᴜᴍ ᴏғ 'ɴ' ɴᴜᴍʙᴇʀs) ÷ ( ɴ )

= (x + x + x +…..+ x) ÷ ()

ᴡᴇ ɴᴇᴇᴅ ᴛᴏ ғɪɴᴅ sᴜᴍ ᴏғ ᴛʜᴏsᴇ ɴᴜᴍʙᴇʀs

sᴜᴍ ɪs ɢɪᴠᴇɴ ʙʏ

sᴜᴍ = x + x + x +…..+ x

ғʀᴏᴍ ᴛʜᴇ ᴍᴇᴀɴ ᴇǫᴜᴀᴛɪᴏɴ ᴡᴇ ʜᴀᴠᴇ

= (x + x + x +…..+ x) ÷ ()

ʙʏ ᴍᴜʟᴛɪᴘʟʏɪɴɢ ʙᴏᴛʜ sɪᴅᴇs ᴏғ ᴛʜᴇ ᴀʙᴏᴠᴇ ᴇǫᴜᴀᴛɪᴏɴ ʙʏ , ᴡᴇ'ʟʟ ɢᴇᴛ

x = [(x + x + x +…..+ x) ÷ () ]x()

= x + x + x +…..+ x

sɪɴᴄᴇ, sᴜᴍ = x + x + x +…..+ x

sᴜᴍ = . ( ʙʏ ᴄᴏᴍᴘᴀʀɪɴɢ ᴛʜᴇ ᴀʙᴏᴠᴇ ᴛᴡᴏ ᴇǫᴜᴀᴛɪᴏɴs )