Question

10 - In a class of 20 kids, each kid is given a number of chocolates equal to their roll
number The roll numbers are from 1 to 20. Hence the first kid gets one chocolate the
second gets two and so on. Now the teacher takes away chocolates from any 2 kids and
distributes (a+b+2) chocolates to them - where a and b are chocolates with any two kids.
This process is repeated 19 times. How many total number of chocolates are with the kids
at the end of the 19 time this is done?
a) 211
c) 187
b) 222
d) 249​

Answer 1

a) 211

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