Answer:
9.6%
Step-by-step explanation:
According to the problem, calculation are as follows,
Company borrowed on March 1 = $1,112,250
First we calculate total expenditures in constructing a building.
Total Expense = ($1,836,000 × 10÷12)+ ($1,236,000 × 7÷12)+ ($3,038,370 × 0÷12)
= $1,530,000 + $721,000 + 0
= $2,251,000
So, Difference in both amount = $2,251,000 - $1,112,250 = $1,138,750
We can calculate the weighted average interest rate by using following formula,
Weighted average interest rate = Interest ÷ outstanding principal
Where, Outstanding principal = $2,342,100 + $3,467,800 = $5,809,900
Interest = $2,342,100 × 9% + $3,467,800 × 10%
= $210,789 + $346,780 = $557,569
So, by putting the value in formula, we get,
Weighted average interest rate = $557,569 ÷ $5,809,900
= 0.096 or 9.6%