Question

please answer these correctly​

Answer 1

here is your ans my dear friend

Answer 2

Answer:

20 years

Step-by-step explanation:

Let sum of money is P

After t years , sum of money will be 3P as given in the statement,

Interest rate per annum = 10%

Formula:

$Simple\:Interest\:=\:\frac{P\:\times\:R\:\times\:t}{100}\:$

$Simple\:Interest\:=\:\frac{P\:\times\:10\:\times\:t}{100}\:$

Final sum of money = Simple interest + Initial sum of money

$3P\:=\:Simple\:Interest\:+\:P\:\\2P\:=\:\frac{P\:\times\:10\:\times\:t}{100}\\2\:=\:\frac{10t}{100}\\t\:=\:20\: years$

Therefore, after 20 years sum of money will be tripled.