Answer:

1000N
Step-by-step explanation:
Greetings!!!
Firstly, recall about simple machine
Where, L.F.- Load Force
- L.D.- Load Distance
- E.F.- Effort Force
- E D.- Effort Distance
Substitute known variables into the equation
change the cm into m.

Divide both sides by 0.25m

Cancel out the meter by meter and solve for L.F.
If you have any questions tag me on comments
Hope it helps!!!