Question

A TV was bought at a price of 21000. After 1 year the value of the TV was depreciated by 5 %. Find the value of the TV after 1 year

Answer 1

solve with unitary method,

very short,

cp = 21000

then 100% = 21000

1%. = 21000/100

= 210

the value of 95% because 5% depreciated

so,

95% = 210*95 = 19150 rupees

Answer 2

Correct Question :

A TV was bought at a price of 21,000. after one year the value of the TV was depreciated by 5.find the value of TV after one Year?

${ \huge \bf{ \mid{ \overline{ \underline{\red {A\green n\purple s\pink wer}}}} \mid}}$

$\small\underline\textsf{\red{ the value of TV after one Year}=\underline{19,950}}$

$\small\underline\frak{Given}$

$\sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: pricipal = rs.21000 \\\sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:reduction = 5\% \: of \: 21000 \: per \: year$

$\small\star\underline\frak{to \:find :- }$

$\small\underline\textsf{the value of TV after one Year}$

$\huge\underline\textsf{Explantion:-}$

$\boxed{\boxed{\underline{\sf{\frac{21000 \times 5 \times 1}{100} = 1050}}}}$

$\sf value \: at \: the \: end \: of \: 1 \: year \\\sf \:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:= 21000 - 1050 = 19,950$

$\rule{300}{2}$

$\huge\underline\frak{Alternately:- }$

$\small\underline\textsf{we \: may \: directly \: get \: this \: as \: follows}$

$\sf value \: at \: the \: end \: of \: 1 \: year = \boxed{(1 - \frac{5}{100})}$

$\boxed{\boxed{\boxed{\sf 21000 \times \frac{19}{20}}}}$

$\star\sf 19,950$