The kwans are saving for their daughterís college education. if they deposit $12,000 in an account bearing 6.4% interest compounded continuously, how much will be in the account when ann goes to college in 12 years?

Principal amount (P) = $12000
Rate of interest (I) = 6.4%
Time of deposit = 12 years
Let us assume the final amount to be = A
Then
A = P ( 1+r ) ^ t
   = 12000 (1 + 0.064) ^12
   = 12000(1.064)^12
   = 12000 * 2.105
   = 25260 dollars
From the above deduction, it can be concluded that the account will have $25260, when Ann goes to college in 12 years.

The answer is e &