There are eight bags of rice looking alike, seven of which have equal weight and one is slightly heavier. The weighing balance is of unlimited capacity. Using this balance, the minimum number of weighings required to identify the heavier bag is
2
One weighing has only three outcomes, insufficient to distinguish eight bags. Weigh three against three: the heavier bag lies in the heavier triple, or in the two left aside if balanced. One further comparison identifies it. Thus two weighings suffice and are necessary.
Important Questions from Miscellaneous
Which event is marked as an Intangible Cultural Heritage of Humanity by UNESCO?
Who has been conferred with the rank of the Commander of the Order of the British Empire in 2018?
Who directead the film ‘Bhuvan Shome’?
The book “In my mother’s house” is written by _______
In which state is Vishwa Mitra Ka Tila situated?
