Question

please solve it full solution​

Answer 1

Lᴇᴛ ᴛʜᴇ ǫᴜᴀɴᴛɪᴛʏ ᴏғ ᴍɪʟᴋ ɪɴ 60 ʟ ᴏғ ᴍɪxᴛᴜʀᴇ = x

Aɴᴅ ᴀᴍᴏᴜɴᴛ ᴏғ ᴡᴀᴛᴇʀ ɪɴ 60 ʟ ᴏғ ᴍɪxᴛᴜʀᴇ = ( 60 - x )

ᴛʜᴇɴ

$\frac{x}{60 \: - \: x}$ =

$\frac{2}{1}$

ʙʏ ᴄʀᴏss ᴍᴜʟᴛɪᴘʟʏ ᴍᴇᴛʜᴏᴅ

2(60 –x) = x

120 -2x = x

120 = x + 2x

120 =3x

120/3 = x

40 = x

Or x = 40

ᴍɪʟᴋ ɪɴ ᴍɪxᴛᴜʀᴇ = 40 ʟ

ᴀɴᴅ ᴡᴀᴛᴇʀ ɪɴ ᴍɪxᴛᴜʀᴇ = 60 - 40

= 20 ʟ

ɴᴏᴡ ʟᴇᴛ ʏ ʟɪᴛᴇʀs ᴏғ ᴡᴀᴛᴇʀ ᴛᴏ ʙᴇ ғᴜʀᴛʜᴇʀ ᴀᴅᴅᴇᴅ

sᴏ

$\frac{milk}{water} = \frac{1}{2}$

$\frac{40}{20 + y} = \frac{1}{2}$

Bʏ ᴄʀᴏss ᴍᴜʟᴛɪᴘʟʏ ᴍᴇᴛʜᴏᴅ

40×2 = 20 +y

80 = 20 +y

80 -20 = y

60 = y

Or y =60

60 ʟɪᴛᴇʀs ᴏғ ᴡᴀᴛᴇʀ ᴛᴏ ʙᴇ ғᴜʀᴛʜᴇʀ ᴀᴅᴅᴇᴅ

Answer 2

[tex]let \: the \: first \: term =x \\ second \: term \: = \: x+40 \\

ratio \: =x:(x+40) \\ then \frac{x}{x+40} = \frac{2}{7 } \\ by \: cross \: multiply \: method \\ 7x = 2(x + 40) \\

7x = 2x+ 80 \\

7x– 2x = 80 \\

5x = 80 \\

x= 80/5 \\

x = 16 \\ ratio \: = \frac{16}{16 + 40} \: = \frac{16}{56} \\ = 16:56[/tex]