You may get admission in BCA, but it is better to repeat theory paper. It will be helpful for your future because in BCA course include mathematic in its 2 semester which is of 12th level for 1st and 2nd years in the first semester the level is basic then the level rise as per the syllabus and as the next semester begins.so you need to keep practicing maths along with BCA to get any job.

You can also do polytechnic if you Pass your 10th board exam with a minimum of 50% marks in Mathematics, Science, and English.