Shyam’s puri-sabji became famous. Now he gets 5 orders per 10 minutes and has invested in an additional oven. As he is working alone on both the ovens simultaneously, now in any one oven it takes him 45 minutes to cook one handi of sabji,15 minutes for 2 plates of puri and 15 minites to reheat the sabji. He can bring only one handi from home. What will be his maximum daily profit?
Explanation:
Shyam brings a handi from home. It is sufficient for 12 customers. Shyam will use both the ovens till 7:30 for plates for puri. So he can serve 8 customers. He will now reheat sabji on using one oven and prepare another handi of sabji on the other oven. After reheating sabji, he will use that oven for preparing puris. So, at the end of 8 : 15, he will serve to 4 more customers. From 8:15 to 8:45, he will use both the ovens for preparing puris and thereby he will serve 8 customers. From 8:45 to 9, he will use one oven to prepare a plate of puri and other for reheating sabji. This will be sufficient to two customers. Thus, in all he can sale 8 + 4 + 8 + 2 = 22 Cost of 22 plates = 22 × 10 + 50 = 270 He will make 25 × 22 = 550 by selling 22 plates. Profit = 550 - 270 = 280 Hence, option (b).
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