If a business intends to invest by borrowing funds it will have to pay interest on the borrowed amount.
If the interest rate is 20% or above the investment will not make any profits therefore the borrowing rate should be below 20%.
At the rate of 16% company is able to generate profits by an investment of $10bn. It he borrowing rate further declines to 12% the company can invest $20bn.
If the rates decline by 4 percentage points the company can invest further $10bn.
The correct expression equation will be i = 20 - 4L
The correct answer is b.
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