Precious Ruby stones are

The precious Ruby stone is :

What is the total sales of Ruby as a per cent of the total sales of precious stones for the given period ?

Precious stones, such as gem stones, are products of

Precious stones, such as gem stones, are products of

The precious stone aquamarine is :

The cost of a precious stone varies as the cube of its weight. The stone broke into 3 pieces whose weights are in the ratio 1 : 2 : 3 . As a result its cost reduces . If the cost of the unbroken stone is Rs. 96, 336, then find the loss incurred due to breakage.