A first order reaction is `20%` complete in 10 minutes. Calculate the time for the completion of `75%` of the reaction.

A first order reaction is 20% complete in the 10 minutes. Calculate the time period for 75% completion of the reaction.

A first order reaction is 20% complete in 10 minutes. Calculate the time taken for the reaction to go to 80% completion.

A first order reaction is 20% completed in 10 minutes. Calculate the time taken for the reaction to go to 80% completion.