Question

the difference between simple interest and compound interest on RS.800 at 5 percent per annum for 1 year is

RS.81
RS.41
RS.56.50
None of the above

Answer 1

Answer:

none of the above is the correct option

compound interest and simple interest for 1 year is exactly same

please mark it BRAINLIEST

Answer 2

Answer:

4. None of the above.

Step-by-step explanation:

Given :-

• Principal (p) = Rs.800
• Rate of interest (r) = 5%
• Time (t or n) = 1 year

To find :-

• The difference between simple interest and compound interest.

1. Rs. 81
2. Rs. 41
3. Rs. 56.50
4. None of the above.

Solution :-

Formula used :

★ ${\boxed{\sf{Simple\: interest=\dfrac{ptr}{100}}}}$

★ ${\boxed{\sf{Compound\: interest=p\bigg(1+\dfrac{r}{100}\bigg)^n-p)}}}$

Now find the simple interest.

$\to \sf \: simple \: interest \: = \dfrac{800 \times 1 \times 5}{100} \\ \\ \to \sf \: simple \: interest \: = 8 \times 5 \\ \\ \to \sf \: simple \: interest \: = 40$

Now find the compound interest.

$\to \sf \: compound \: interest \: = 800 \bigg(1 + \dfrac{5}{100} \bigg) ^{1 } - 800 \\ \\ \to \sf \: compound \: interest \: = 800 \bigg \{(1 + \dfrac{5}{100} ) - 1 \bigg \} \\ \\ \to \sf \: compound \: interest \: = 800 \bigg( \dfrac{21}{20} - 1 \bigg) \\ \\ \to \sf \: compound \: interest \: = 800 \times \dfrac{1}{20} \\ \\ \to \sf \: compound \: interest \: = 40$

Difference between simple interest and compound interest = (40-40) = 0

Therefore,

4. None of the above is correct answer.