A 100 V voltmeter of internal resistance...

A `100 V` voltmeter of internal resistance `20 k Omega` in series with a high resistance `R` is connected to a `110 V` line. The voltmeter reads `5 V`, the value of `R` is

`210 k Omega`

`315 k Omega`

`420 k Omega`

`440 k Omega`

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