The amount of work doneby two boys who apply 200n of force in an unsuccessful attempt to move a stalled car is

Work done = force applied in the direction of work×distance the object moves in direction of force
in this case, even though force of 200 n is applied, the attempt to move car is unsuccessful, such that the object does not move. hence distance moved is 0 m. therefore, work done = 200×0=0. hence no work is done

He can play two games. 13/4=3.253.25*2=6.5