Question

in how much time wil a certain sum be 1.5 times the principal at 10% per annum​

Answer 1

Let the Principal be x

and the Time taken be t

and rate of increase per annum =10%

Now, According to given Conditions

1.5x=x+t×(10010x)⇒0.5x=t×(0.1)x⇒t=5 years

Answer 2

Answer:

Let the Principal be x

and the Time taken be t

and rate of increase per annum =10%

Now, According to given Conditions

1.5x=x+t×( 10/100 X) ==> 0.5x=t×(0.1)x==>t=5 years