JEE exam prep book with chapter wise and topic wise questions and solutions

Questions and Answers are separated and soft binded separtely
so, 6 book
maths Q, maths A
chem Q, chem A
phy Q, phy A

there is just name writtern and some underlining in pen in1 or 2 chapter

it's looks neww and have not touched more than 2 chapter in that book 📕, you can see that in above img.

if you are preparing for JEE, this can be a treasure.