You should target a marks >110 for SSC CGL in order to qualify the cut off. Nowadays the competition is increasing rapidly. So you must not take any risk and prepare hard for such marks.

For SSC CGL preparation tips you may visit the link provided below:

https://competition.careers360.com/articles/how-to-prepare-for-ssc-cgl

I hope my answer helps. All the very best for your future endeavors!