Answer: 5,000,000 barrels
Explanation:
First, we need to calculate the last year income which will be:
= $700,000 / 20%
= $700,000 / 0.2
= $3,500,000
Since the average price is $75, the total barrels sold last year was:
= $3,500,000 / 70
= 50,000 barrels
Since it's 1% of the total reserve, then the total reserve will be
= 50,000 / 1%
= 50,000 / 0.01
= 5,000,000 barrels