Question

A choir concert platform consists of 6 rows. The number of performers increases by 2 witheach successive row. How many performers are there in all if the back row has 36performers?A 48B 84C 186D 372

Answer 1

In this problem, we have the sequence

inverse sequence

36,34,32,30,28,26

The sum is equal to

S=36+34+32+30+28+26

S=186

The answer is option C