Question

in what time will an interest on 16000 amount to rupees 20000 at 5% per annum​

Answer 1

A = P + SI
➡️ 20000 = 16000 + SI
➡️ 4000 = SI
Now
SI = PRT/100
➡️ 4000 = 16000 x 5 x T / 100
➡️ 4000 x 100 / 16000 x 5 = T
➡️ 100/20 = T
➡️ 5 = T
So the answer is 5 years

Answer 2

Answer:

answer is 5 years

Step-by-step explanation:

principal amount =160000

amount. = 20000

rate of interest. = 5%

SI = 20000-16000

SI = 4000

SI = PTR/100

4000= 16000×T×5/100

simplify two zeros of 100 and 16000

multiply 160 and 5

4000=800×T

4000/800 =T

divide 4000 and 800 you will get 5

so T=5