Question

There are nine bags of sugar looking alike, eight 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

Answer 1

Answer:

2 weighing

Step-by-step explanation:

in first weighing

we will make 3 heap of 3 bags each

we will weigh any two heap

and we will be able to identify which heap is heavier

Either one of two heaps weighed is heavier or third heap is heavier

Now we are with 3 bags

in second weighing

we will take any two bags & weigh

and we will be able to identify heavier bag

As Either one of two bags weighed is heavier or third bag is heavier

With two weighing we can identify the heavier bag