Hello Abhay, As per your query i would like to tell you 10+2 system means talking about class 11nd and 12th standard after class 10....10+1 is 11 standard... 10+2 is 12 standard..... After that is graduation....

Hopefully it helps
Regards

Hello,
Generally,In the early times peoples uses to call class 11th as 10+1 and class 12th aa 10+2.This is the easy way of representing class names.
But nowadays people always call class 12th and class 11th.
I hope you got it!:)