Question

Answer the question based on the given information. Ramesh works in a factory control room, where he operates three electronic devices which run on ordinary batteries.Each device requires 1 battery, which lasts for 8-12 days depending on the battery quality.Ramesh has a stock of 8 new batteries. The number of days each will last (though this is not known to Ramesh) is shown below.Ramesh puts new batteries in all three devices in the order shown. After this, as batteries run out, Ramesh replaces the old batteries from his stock IN THE SAME ORDER.Which battery will replace battery number 2 in device 2?On which day will Ramesh have to buy a new battery? *

a) day 16
b) day 21
c) day 27
d) day 25​

Answer 1

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