Question

Find the interest on ₹ 3600 at
12/5
% per annum for a period of 3 years and 6

months.

Answer 1

We have,

P=Rs.3600

A=Rs.4734

T=321=27 years

R=?  

We know that

A=P+S.I

S.I=100PRT

Therefore,

A−P=100PRT

4734−3600=1003600×R×27

1134=36×R×27

1134=18×R×7

R=9%

Hence, this is the answer.

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Answer 2

Answer:

P = ₹3600

R = 12/5%

T = 3 years 6months ( 3years = 12× 3= 36 months)

T = 36+6 = 42 months

S. I = P × R × T / 100

S. I = 3600×12 × 42/ 100×5×12

S. I = 36×42/5

S. I = 1512/5

S. I = 302.4

Amount= P+S.I

Amount = 3600+302.4 = 3902.4

Step-by-step explanation:

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