Students admitted (A) and who left (L) from five colleges P–T, 2016–2021 (all founded 2016). 2016 shows the number studying.

College	2016	2017 A	2017 L	2018 A	2018 L	2019 A	2019 L	2020 A	2020 L	2021 A	2021 L
P	2250	660	440	580	420	690	400	760	500	700	460
Q	2100	900	500	650	430	570	420	600	380	680	440
R	2400	840	460	800	500	720	450	680	480	820	560
S	3200	880	500	800	520	790	440	840	450	920	480
T	3100	700	450	760	460	820	440	880	420	850	430

The number of students studying in College Q up to 2020 is

A3110

B2890

C3090 ✓ Correct

D3290

Correct answer: (C) 3090

Explanation

The answer is 3090.

College Q started with 2100 students in 2016.

The yearly net additions are admitted minus left, giving 400, 220, 150 and 220 for 2017 to 2020.

Adding these gives 2100 plus 400 plus 220 plus 150 plus 220.

That total is 3090.

The other options do not match this sum.

So the answer is 3090.

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