Given:
- The supermarket bought 60 tubes of toothpaste.
- The total cost to the supermarket was k dollars.
- Each tube was sold for 40% more than the purchase price.
Statement (1): The toothpaste was sold for a total of 48 dollars more than the supermarket paid for it.
Let x be the cost price of each tube to the supermarket.
Then, 60x = k (total cost to supermarket)
Selling price of each tube = x + 40% of x = 1.4x
Total selling price = 60 * 1.4x = 84x
We're told that this is $48 more than the purchase price:
84x - 60x = 48 => We can solve for x, hence Statement (1) alone is sufficient to answer the question.
Statement (2): Each tube of toothpaste was sold for 80 cents more than it cost the supermarket.
Let y be the cost price of each tube to the supermarket.
We're told that the selling price is 40% more than y:
y + 40% of y = y + 0.80
1.4y = y + 0.80
0.4y = 0.80 => We can solve for y, therefore Statement (2) alone is also sufficient to answer the question.
Hence answer is (D) : EITHER statement ALONE is sufficient to answer the question.