This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
This problem can be solved by using the formula I = PRT where, I is the interest, P is the principal amount, R is the rate, and T is the time.

The given in the problem are
P = 800
I = 240
R = 6.5% or 0.065

What is asked in the problem is the time T
We will now solve the problem by substituting the given to the formula
240 = 800(0.065)(T)
240 = 52T
240/52 = 52T/52
4.62 = T
T = 4.62 years

Therefore, it will take 4.62 years for 800 pesos to earn 240 pesos at 6.5% interest rate