Hi all, i am in year 13 taking maths, further maths, bio and chemistry. I plan on taking a gap year next year then applying to either Cambridge or oxford for maths. I really want to focus as much on maths as possible on maths this year and am struggling a tiny bit with chem, although it is repairable. I am considering dropping chem, but since i go to a selective independent school where pretty much everyone does 4 a levels, i was told i would be less likely to get in if i do 3. All admissions data from my school show that everyone who gets in from here takes 4 a levels (and get 4a*). Will i be at a disadvantage if i drop chemistry such that i do 3 a levels, or alternatively will i be at a disadvantage if i drop chemistry this year, do three a levels now and do chemistry as an extra a level in the gap year? As ive heard Oxbridge want you to sit all a levels within two year course. Please help