Correct Answer: 111/4
Explanation:
∵ In 2/3h, 1 article is made. ∴ In 1h, 3/2 article are made. ∴ In 71/2 = 15/2h, 3/2 x 15/2 = 45/4 article are made. ∴ Required articles = 45/4 = 112/4