i was scoring about the same as you but ended up getting a 49.
Practicing the following gave me an immediate boost in IR (from 3 to 7) and quant (from 42 to 49) -allegation method in mixture problems -i was using this technique in work and speed problems too, estimating the answers (saves an awful amount of time), number lines in absolute values and inequalities, offsetting in calculating averages (saved me doing calculations)
PS: i am a biology graduate, and i haven't studied maths since class X.