IBPS PO Reasoning: Time and Work questions with solutions

Q1. Machine D takes 12 minutes to process a product. It can start processing a product only if it receives it before or exactly at the half-hour mark. Otherwise, the product must wait until the next half-hour mark. The factory stops accepting new products for processing at 4:00 PM. Q37. Find the total number of products fully manufactured by 5:00 PM.

1. 38
2. 39
3. 37
4. 40

Answer: 40

Since the machine starts only at half-hour marks, products are processed in batches. From the start of the working window up to 4:00 PM, there are enough half-hour starts for all accepted products to complete by 5:00 PM, giving a total of 40 products.