Question

solve :-

1. principal in rupees 3000, rate of interest 4.5 number of year 2 , amount in rupees​

Answer 1

According to the question:

• It is given that principal on 3000 rupees,4.5% rate of interest on 2 years time.We are said to find Simple Interest and amount.

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Given:

• Principal = 3000 rupees
• Time = 2 years
• Rate = 4.5%

To Find:

• Amount = ?
• Simple Interest = ?

$\:\:\:\:$________________________

Using Formula:

$\: \: \sf \: si = \frac{prt}{100}$

Denote Simple Interest be 'SI',Rate be 'R',Time be 'T' and Principal be'P' as given here.

Now substitute the given values

$\: \: \sf \: si = \frac{3000 \times 2 \times 45}{100 \times 10} \\ \\ \: \: \sf \therefore \: si = 270 \: rupees$

$\therefore$

Hence, Simple Interest is 270 rupees.

Now find Amount

Using Formula:

$\: \: \sf \: amount =principal + simple \: interest$

Now substitute the known values

$\: \: \sf \: a = 3000 + 270 \\ \\ \: \: \sf \therefore \: a = 3270 \: rupees$

$\therefore$

Hence, Amount is 3270 rupees.

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Answer 2

Given:-

• Principal = Rs.3000
• Rate = 4.5%
• Time = 2 years

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To find:-

• Amount in rupees.

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Solution:-

According to the question,

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Firstly,

• finding the Simple interest.

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We know that,

• SI = P × R × T/100

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Where,

• SI = Simple interest
• P = Principal
• R = Rate
• T = Time

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⇢ SI = 3000 × 4.5 × 2/100

⇢ SI = 27000/100

⇢ SI = Rs.270

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Hence,

• Simple interest is Rs.270.

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Now,

• finding the amount in rupees.

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We know that,

⇢ Amount = Principal + Simple interest

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⇢ Amount = 3000 + 270

⇢ Amount = Rs.3270

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Hence,

• The amount is Rs.3270.