Question

ᴛʜᴇ ʀᴀᴛɪᴏ ᴏғ ɴᴜᴍʙᴇʀ ᴏғ ʙᴏʏs ᴛᴏ ɴᴜᴍʙᴇʀ ᴏғ ɢɪʀʟs ɪɴ ᴀ ᴄʟᴀss ɪs 2 : 3 ᴡʜᴀᴛ ᴘᴇʀᴄᴇɴᴛᴀɢᴇ sᴛᴜᴅᴇɴᴛs ɪɴ ᴛʜᴇ ᴄʟᴀss ᴀʀᴇ ʙᴏʏs ? ᴀʟsᴏ ғɪɴᴅ ᴛʜᴇ ᴘᴇʀᴄᴇɴᴛᴀɢᴇ ᴏғ ɢɪʀʟs ?​

ᴘʟᴇᴀsᴇ ᴀɴsᴡᴇʀ...
sᴘᴀᴍᴍᴇʀs sᴛᴀʏ ᴀᴡᴀʏ...
ғᴏʟʟᴏᴡ ᴍᴇ ᴘʟᴇᴀsᴇ...​

Answer 1

Step-by-step explanation:

ratio= 2: 3

let no. of boys= 2x and girls= 3x

therefore no. of students = 2x+3x = 5x

$\% \: of \: boys = \frac{no. \: of \: boys}{total \: no. \: of \: students \: } \times 100 \\ = > \frac{2x}{5x} \times 100 = 40\%$

therefore % of girls = 100%-40%=60%

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Answer 2

$\huge\underline\mathfrak{\pink{A}\blue{N}\purple{S}\orange{W}\red{E}\green{R}}$

1. Answer:

$let,\\ total \: no. \: of \: boys \: = 2x \\ and \: total \: no. \: of \: girls \: = 3x \\ total \: no \: of \: students = 5x \\ total \: percentage \: of \: boys \: in \: the \: class \\ = \frac{total \: boy}{total \: students } \times 100 \\ \\ \frac{2x}{5x} \times 100 \\ \\ \frac{2}{5} \times 100 \\ \\ 2 \times 20 = 40 \: percent \\ \\ similarly \: \\ total \: percentage \: of \: girs \: in \: the \: class \\ = \frac{total \: girls}{total \: students } \times 100 \\ \\ \frac{3x}{5x} \times 100 \\ \\ \frac{3}{5} \times 100 \\ \\ 3 \times 20 = 60 \: percent$

2. Answer:

Refer to the attachment.

$\green{ hope \: it \: helps}$