Question

aswer it pzl plz quickly​

Answer 1

Answer:

Let the time period be n

here it is compounded annually

so formula is amount =principal (1+r/100)^n

or,6480=3750 (1+20/100)^n

or, 648/375=(120/100)^n

or, (6*6*6*3)/(5*5*5*3)= (6/5)^n

or, (6*6*6)/(5*5*5)=(6/5)^n

or, (6/5)^3= (6/5)^n

or, n= 3

so the required time is 3 yrs.