Three blocks of masses m , m and M are k...

Three blocks of masses m , m and M are kept on a frictionless floor as shown in the figure .The leftmost block is given velocity v towards the right . All the collision between the blocks are perfectly inelastic . The loss in kinetic energy after all the collision is `5//6th` of initial kinetic energy. The ratio of `M//m` will be

`1/4`

`1/8`

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