Question

Intrest
120 at 6% per annum 10 years​

Answer 1

Answer:

Step-by-step explanation:

p = 120

r = 6

t = 10 yrs

I = prt/100

  = 120 * 6 * 10/100

  =  720 * 10 /100

  = 7200 / 100

  = 72.rupees

Answer 2

Answer:

Simple interest = 72 Rs.

Compound interest = 214.90 Rs.

Step-by-step explanation:

I'm not sure if we have to find simple or compound interest as it has not been specified in the answer, so let me give you both :)

Simple Interest:

Simple Interest formula: $\frac{P*T*R}{100}$

P = 120 Rs

R = 6%

T = 10 years

So, simple interest in this case will be:

$\frac{120*6*10}{100}$ = $\frac{12*6*1}{1}$   - I have cancelled the zeros in 120 (n) and 10 (n) with 100 (d)

            = 12 × 6

            = 72

Therefore, simple interest = 72 Rs.

Compound Interest:

Compound Interest formula = $P (1 + \frac{r}{100})^t$

P = 120 Rs

R = 6%

T = 10 years

So, compound interest in this case will be:

$120(1 + \frac{6}{100})^{10}$

= $120(\frac{100+6}{100})^{10}$  - I have converted $(1 + \frac{6}{100})$ into a mixed fraction

= $120(\frac{106}{100})^{10}$

= 214.90

Therefore, compound interest = 214.90 Rs.

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Hope it helps

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