Tap ‘A’ and tap ‘B’ can fill a tank in 40 hours and 30 hours, respectively. If both taps are opened together, then find the time after which tap ‘A’ must be closed so the whole tank can be filled in 15 hours.
Let total capacity of the tank is 120 litres (LCM of 40 and 30) Quantity of water filled by tap ‘A’ in one hour = 120/40 = 3 litres Quantity of water filled by tap ‘B’ in one hour = 120/30 = 4 litres Let tap ‘A’ is closed after ‘x’ hours So, 7 × x + 4 × (15 – x) = 120 Or, 3x = 60 Or, x = 20 hours
Which of the following is not an operational decision?
The _______ is a process used to arrive at a group opinion or decision by surveying a panel of experts.
_________ are mental shortcuts that allows people to solve problems and make judgments quickly and efficiently.
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Fish-bowling is a variation of which of the following decision-making technique?
Which of the following theory states that people are averse to losses?
