Math, asked by yamuna19, 11 months ago

after how many years does a sum of rs. 400 become double at simple interest at 10% per annum​

Answers

Answered by systemboss
1

Answer:

10 years

Step-by-step explanation:

let, time= t

400 + 400*10*t/100 = 800

or, 40t = 400

or, t = 10

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