1.

The value of (1.2.3…..9).(11.12.13…19).(21.22.23….29).(31.32.33……39).(41.42.43….49).(51.52.53…..59)……(91.92….99)

Answer»

`(100!)/(36288xx10^11)`
`(99!)/(388xx10^11)`
`(99!)/(36288xx10^10)`
can't be determined

Answer :C


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