Answers

The Brainliest Answer!
2016-02-12T20:29:41+05:30
If you meant 2+4+6+8+.......20 times[for20 people] then the ans is 420
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2016-02-12T20:36:13+05:30
According to the question the amount spent on the prizes are in A.P.
the terms are 2,2+2X1,2+2X2...,2+2X19
A=2
d=2
Sn=nby2(2a+(n-1)d)
=10(2X2+19X2)
=320



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