Query related my certificate test

Sir, in my quiz i have got 24 marks out of 38, and also pasted links regarding project and questions,but in the score, i am getting 48 points out of 100. Although some questions are sent for manual grading and it is written that the score is not final, but in feedback it is showing that I am not eligible for the certificate. Why is it so?

@rams9562 The system will say that you are not eligible for the certificate if you have not passed the exam with 50% marks. However, once we have graded the exam answers, you will receive an email with the latest marks and link to download the certificate.