Question

at what rate of simple interest per annum will rupees 10000 amount to rupees 12000 in 3 years​

Answer 1

here is your answer mate:

given :

_ principle = 10000

_ amount = 12000

_ time = 3 years

to find:

_ rate of interest

solution:

we know that amount = simple interest + principle

12000 = SI + 10000

SI = 2000 ___i

we know that SI = ( P x R x T )/100

substituiting the values

we get,

2000 = ( 10000 x R x 3 )/100

200000 = 30000 x R

R = 20/3

R = 6.6

thus the rate of interest is 6.6

hope this answer helps you buddy

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