One-fourth of a first order reaction is completed in 32 minutes. What is the half-life period of this reaction?

Three-fourth of a first order reaction is completed in 32 minutes. What is the half-life period of this reaction ?

One fourth of a first order reaction is completed in 32 minutes. What is the half life period of the reaction ?

The three fourth of a first order reaction is completed in 32 minutes. What is the half-life period of the reaction ?

The three fourth of a first order reaction is completed in 32 minutes. What is the half life period of the reaction?

A first order of reaction is 75% complete in 18 minute. What is the half-life period for the reaction ?

One fourth of a first order reaction is completed in 32 mins. What is the half life of the reaction?

One-fourth of reaction is completed in 32 min. What is the half-life period of this reaction? How is half-life period related to initial concentration for a second order reaction?