Question

find the simple interest when principal is 12000 rate of interest is 18% per annum and time is 4 months​

Answer 1

Answer:

principal (p) = 12000

Rate (r) = 18%

Time (t) = 4 years

simple interest (s.i) = p × r × t / 10p

si = 12000 × 18 × 4 ÷100

= 8640

so the simple interest is 8640

Answer 2

Answer:

SI=PRT/100

Step-by-step explanation:

P=12000

R=18%

T=4/12 YEARS > T=1/3 YEARS > T = 0.3 YEARS

(WE HAVE TO ALWAYS TAKE TIME IN YEARS )

SO

SI = 12,000×18×0.3/100

SI = 120×18×0.3 = 12×18×3 = 648 answer

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