Question

The compound interest on rs. 1000 at 5% pa for 1 year= _______
100
75
25
50

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Answer 1

Answer:

50 rupees is the right answer

Step-by-step explanation:

becoz C.I=p*r*t/100

Answer 2

Given:

Principal=Rs.1,000

Rate=5% p.a.

Time=1 year

To find:

Amount of interest

Solution:

The required interest is Rs.50.

We know that the amount required can be obtained by putting the values in the following formula-

Amount=Principal×(1+rate/100$)^{years}$

Using the values,

=1000×(1+5/100$)^{1}$

=1000×(105/100)

=10×105

=Rs.1050

So, the interest=amount-principal

Using values, we get

=1,050-1,000

=Rs.50

Therefore, the required interest is Rs.50.