Question

the last number of complet years in which a sum of money put out at 20% compound interest will be more than double is?​

Answer 1

Step-by-step explanation:

P(1+

100

20

)

n

>2P⇒(

5

6

)

n

>2.

Now, (

5

6

×

5

6

×

5

6

×

5

6

)>2.

So, n=4 years

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