Question

1]]]] Convert the following percentages to fractions and ratios:

(a) 25% (b)2. 5% (c)0. 25%

2]]]] Express the following as decimal fractions :

(a)27% (b) 6. 3%

3]]]] Find 12% of Rs 1200 ​

Answer 1

Question :

• Convert the following percentages to fractions and ratios :

(a) 25% - $\large\bf{\frac{25}{100}}$ = $\large\bf{\frac{1}{4}}$ = 1 : 4

(b) 2.5% - $\large\bf{\frac{25}{1000}}$ = $\large\bf{\frac{1}{40}}$ = 1 : 40

(c) 0.25% - $\large\bf{\frac{25}{10000}}$ = $\large\bf{\frac{1}{400}}$ = 1 : 400

$\:$

Question :

• Express the following as decimal fractions :

(a) 27% = $\large\bf{\frac{27}{100}}$

(b) 6.3% = $\large\bf{\frac{63}{1000}}$

$\:$

Question :

• Find 12% of Rs 1200

$\implies$ $\large\bf{\frac{12}{100}}$ × 1200

$\implies$ 12 × 12 = 144

$\:$

What are rules for being a brainly star ? as I want to be one !

$\:$

hσpє ít hєlpѕ :)

Answer 2

Answer:

1. Cᴏɴᴠᴇʀᴛ ᴛʜᴇ ғᴏʟʟᴏᴡɪɴɢ ᴘᴇʀᴄᴇɴᴛᴀɢᴇs ᴛᴏ ғʀᴀᴄᴛɪᴏɴs ᴀɴᴅ ʀᴀᴛɪᴏs:

(ᴀ)25% = in fraction

$\frac{25}{100} = \frac{1}{4}$

In ratio =1:4

(ʙ)2.5% = ɪɴ ғʀᴀᴄᴛɪᴏɴ

$\frac{25}{10 \times 100} = \frac{25}{1000} \: = \frac{1}{40}$

ɪɴ ʀᴀᴛɪᴏ =1:40

(ᴄ)0.25%=ɪɴ ғʀᴀᴄᴛɪᴏɴ

$\frac{25}{100\times 100} = \frac{25}{10000} \: = \frac{1}{400}$

ɪɴ ʀᴀᴛɪᴏ=1:400

2.ᴇxᴘʀᴇss ᴛʜᴇ ғᴏʟʟᴏᴡɪɴɢ ᴀs ᴅᴇᴄɪᴍᴀʟ ғʀᴀᴄᴛɪᴏɴ:

(ᴀ)27%=

$\frac{27}{100}$

(ʙ)6.3% =

$\frac{63}{10 \times 100} = \frac{63}{1000}$

3.ғɪɴᴅ 12% ᴏғ ʀs.1200.

sᴏʟ: $1200 \times \frac{12}{100}$

12 × 12

144