Central Board Of Secondary Education [CBSE] — I have secured less marks in S.St and Maths in Class x

Address:

rawan teela, aligarh

Sir, I am vibhanshu sengar of class x from st.fidelis ser sec school and secured only 48 marks out of 80 in sst and secured 39 marks out of 80 in maths.so tell me on what bases did you give me these marks how can you judge me that I can not able to get good marks in class x. If I write again the exam of class x. I will loss my time for preparation of class XI.
As I got marks of PA and MID terms tottaly are 37 out of 40 in Sst
School code is 60200