Marcel and jose lifted 50 pounds as many times as they could. marcel could lift the weight 25 times. jose could lift the weight 30 times. marcel and jose can conclude that

The answer is Jose has better muscular endurance than Marcel.

Muscular endurance is the ability of muscles to repeatedly contract against a resistance for a long period of time. If Jose could lift the weigh more times than Marcel, that means Jose’s muscle are able to repeatedly contract against the resistance longer than Marcel’s. Thus, Jose has better muscular endurance than Marcel.