Question

If the value of an article increased from 2100 to 2520, then what % is increased the value?

Answer 1

➤ Given :-

Original value of article :- ₹ 2100

Value after the change :- ₹ 2520

➤ To Find :-

Percentage of increased value...........

➤ Formula required :-

${\large \dashrightarrow \tt \orange{ \boxed{ \tt \gray{ \frac{Change \: in \: Value}{Original \: Value} \times 100}}}}$

➤ Solution :-

First, we should find the change in value by subtracting the value after change and original value.

Change in value :-

${ \tt \longrightarrow2520 - 2100}$

${ \tt \longrightarrow \sf Rs \tt \: \: 2420}$

Now,

Percentage of increased value :-

${ \tt \longrightarrow \dfrac{420}{2100 } \times 100 }$

${ \tt \longrightarrow \dfrac{420}{ \cancel{2100}} \times \cancel{100} = \boxed { \tt\dfrac{420}{21} }}$

$\tt \longrightarrow \cancel \dfrac{420}{21} = 20 \bf \small\%$

$\Huge\therefore$The percentage of change of the article is 20 $\bf\%$.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

More to know...............

• Percentage is written in the symbol of %.
• Percentage is used in all over the world. It is mostly used in calculating the marks of students in their exams in schools and collages. It can also be converted into fraction and decimal form.
• To convert fraction to decimal, we should multiply the given fraction with 100.
• To convert decimal to fraction, first we should convert it to fraction and then multiply by 100.