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 average number of students studying in all five colleges P to T in the year 2018 is

A3168

B3188 ✓ Correct

C3148

D3388

Correct answer: (B) 3188

Explanation

The answer is 3188.

The number studying by end of 2018 is the 2016 figure plus the net additions of 2017 and 2018.

This gives P 2630, Q 2720, R 3080, S 3860 and T 3650.

Their sum is 15940.

The average is 15940 divided by five colleges.

That equals 3188.

So the answer is 3188.

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