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# Read the information given below and answer the question that follows.Shyam prepares and sells piping hot puri and sabji (gravy) from 7:00 am to 9:00 am (both inclusive) through a stall at XLRI campus. Presently, he has just a single oven, which can do only one job at a time. It takes 30 minutes to cook one handi (a large bowl) of sabji, sufficient for 12 customers. It takes him 10 minutes to prepare 2 plates of puri at a time. While the cost of a plate of puri-sabji is Rs. 10 the price is Rs. 25. Puri stays hot for only 5 minutes after preparation, while sabji stays hot for 30 minutes only. It takes 10 minutes to reheat the sabji which slays hot for another 30 minutes. If he brings a handi of hot sabji from home, the transport would cost him Rs. 50. It can also stay hot for 30 minutes excluding the transportation time. Currently, every 20 minutes five plates are ordered. All unsold quantities are distributed at cost after 9:30 am.Shyam's stall was becoming popular by the day. Now be gets 5 customers every 10 minutes. After buying a second oven, he employed a helping hand, Aman at Rs. 100 for two hours. Aman can cook one handi of sabji in 20 minutes or can prepare 3 plates of puri in 10 minutes. Reheat time for sabji is 10 minutes. None of them can work on both the ovens simultaneously. Q. Which of the following options will help Shyam maximize his daily profit, if he does NOT bring sabji from home?a)Shyam should dismiss Aman because his wages are more than the benefits he brings.b)Shyam will prepare only puri and Aman will prepare only sabji.c)Shyam will prepare only sabji and Aman will prepare only puri.d)Shyam and Aman will prepare both pun and sabji.e)Options B, C and D will yield the same profit.Correct answer is option 'D'. Can you explain this answer? Related Test: XAT 2017 - Mock Test - 1

## CAT Question

By VARSHA YADAV · Jul 10, 2019 ·CAT
Praveen Kukreja answered Jul 10, 2019
Since Aman is more efficient, thus he should make sabji while Shyam should make puri. Thus, for first 20 minutes, Aman will make sabji and Shyam will make puri in last 10 min, (of first 20 min. slot) so that reheating of puri is not required. Now, after this, both should simultaneously make puri in 2ovens at their own rate for next 10 min. (because sabji is still available, no need to make more sabji). Thus, it can be safely concluded that to maximize profits, Aman should be doing both the jobs and hence the best choice will be option (D).