Final answer:
Junior withdrew 25% of his original savings, which was $80. By dividing the withdrawn amount by 0.25, we find that he had $320 in his account prior to the purchase.
Step-by-step explanation:
The subject of this question is Mathematics, specifically concerned with percentages and basic algebra. To find out how much money was in Junior's bank account before the withdrawal, we need to recognize that the $80 represents 25% of his original savings. This is expressed mathematically as 0.25 × (original savings) = $80.
To find the original savings amount, we divide the amount withdrawn by the percentage (expressed as a decimal) that it represents. So, the calculation would be $80 ÷ 0.25, which equals $320.
Thus, before withdrawing $80, Junior had $320 in his savings account.