There is 15 ml water in a measuring cylinder When a piece of stone of mass 13 gm is completely immersed in it, the reading of the volume of water becomes 20 ml. The density of the stone is :

Options

A. `2.5 gm//ml`
B. `2.6 gm//ml`
C. `5.2 gm//ml`
D. `1.3 gm//ml`

Answer

B