Answer: $1.5
Step-by-step explanation:Given : Lehana and Marty each opened a savings account with a deposit of $100
Thus, Principal amount is same for both P= $100
Time t=3 years
Rate of interest for Lehana r_1=2.5\%=0.025
Rate of interest for Marty r=2\%=0.002
Difference between the simple interest = S. I. for Lehana- S.I. for Marty
=Pr_1t-Pr_2t\\= Pt(r_1-r_2)\\=100\cdot3(0.025-0.02)\\=300(0.005)=1.5
Hence, Lehana receive $1.5 more in interset than Marty after 3 years.
