TCS Company

Platinum is sold in bars of various weights ranging from 13 gms to 593 gms, in 4 gram increments. Each bar is sealed in a opaque box weighing 47 gms. The box used for packaging has no markings on it indicating the weight of the bar inside.
The precious metals merchant selling the boxes has put the packed box into shelves based on the weight. However, to be certain, he weighs the packed box in an equal arms two pan balance, and a set of weights (which is common for all the box, and which he considers as standards weights) Each of these weighs an integral no.of grams and have their weight marked on them. The merchant, superstitious man always places the packet box of platinum in the left pan, and places the appropriate weights in the left pan or the right pan or both until the balance is achieved. This suffices to tell him the weight of the packed bar.
What is the minimum number of standard weights the merchant must have to be able to accurately determine the weight of the packed boxes.
option
a) 3
b) 8
c) 5
d) 6

Read Solution (Total 7)

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