Question

calculate the compound interest on₹7000 at 9% per annum for two years? please help me ​

Answer 1

Answer:

ok 17000 98%

Step-by-step explanation:

yes Hoga sach mein

Answer 2

GIVEN :-

• Principal , P = Rs. 7000.
• Rate , R = 9 %.
• Time , n = 2 years.

TO FIND :-

• The Compound interest , C.I.

SOLUTION :-

$\\ \red \bigstar \displaystyle \tt \: C.I =P\Bigg[ \bigg(1 + \dfrac{R}{100}\bigg)^{n} - 1\Bigg]$

$: \implies\displaystyle \tt \: C.I =7000\Bigg[ \bigg(1 + \dfrac{9}{100}\bigg)^{2} - 1\Bigg]$

$: \implies\displaystyle \tt \: C.I =7000\Bigg[ \bigg( \dfrac{100 + 9}{100}\bigg)^{2} - 1\Bigg]$

$: \implies\displaystyle \tt \: C.I =7000\Bigg[ \bigg( \dfrac{109}{100}\bigg)^{2} - 1\Bigg]$

$: \implies\displaystyle \tt \: C.I =7000\Bigg[ \bigg( \dfrac{11881}{10000}\bigg) - 1\Bigg]$

$: \implies\displaystyle \tt \: C.I =7000\Bigg[ \bigg( \dfrac{11881 - 10000}{10000}\bigg) \Bigg]$

$: \implies\displaystyle \tt \: C.I =7000\Bigg[ \bigg( \dfrac{1881}{10000}\bigg) \Bigg]$

$: \implies\displaystyle \tt \: C.I = 7 \cancel{000} \times \dfrac{1881}{10 \cancel{000}}$

$: \implies\displaystyle \tt \: C.I = \dfrac{7 \times 1881}{10}$

$: \implies\displaystyle \tt \: C.I = \dfrac{13167}{10}$

$\red \bigstar \: \: \boxed{\displaystyle \tt \: C.I \: =1316.7 } \: \: \red \bigstar$

$\underline{ \underline{ \displaystyle \tt \therefore \: compound \: interest \: is \: Rs. 1316.7 }}$