Question

A sum of $12000, Rate =10% per annum. find the simple interest and compound interest for 1 year, 2 year and 3 years. find which interest changes in direct proportion.

Answer 1

P-12000$
R-10
T-1 year
S.I-P R T/100
-120 for 1 year
For2 year
12000 10 2/100
-240
For3 year
12000 10 3/100
- 360

Answer 2

Answer:

P = 12000, R= 10%,    N = 1 year

SI = P * R * N /100

by putting values in formula, we will get

SI for 1 year 1200

for 2 years 2400 and for 3 years 3600

>> COMPOUND INT

A = P (1+r/100)n

By calculating for 1, 2 and 3 years

compound interest for 1 year would be 1200

for 2 years 2520 and for 3 years 3972

so we can say that simple interest is in direct proportion because as the years getting doubled, SI also getting double and with thrice the year SI also getting 3 times....

hope this is helpful

Step-by-step explanation: