Any suggestions on how to increase attempts in quants.I have completed almost everything still can't attempt more than 10 -12 questions.?

Yeah that's the problem most of us face. This is because at times of mock we feel pressured because of the time limit. Try solving lots of mocks to increase the speed and you will get used to this environment.

Can u solve those questions when there is no time limit, without referring to the solutions?...if YES...then you just need more practice...take more mocks that's the only solution.

@Rex Yes i can solve those questions without time limit and even if i am not able to solve them i can do till like the last or second last step,but in mocks i do silly mistakes,fall for traps and run out of time .