Find the missing group of alphabets in the following series.BV, ET, HR, KP, (…), QL
BV, ET, HR, KP, QL means that :
$$BV=2+22=24,\ ET=5+20=25,\ HR=8+18=26,\ KP=11+16=27,\ QL=17+12=29$$
So, after 27 ,it will be 28 by sum up to two letters.
So, it will be $$NN=14+14=28.$$
C is correct choice.
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