Sum of the seventeen numbers

The sum of the 17 different natural numbers is 154. Determine the sum of the two largest ones.

Correct answer:

s =  34

Step-by-step explanation:

a1=1 d=1 n=17 a17=a1+d (n1)=1+1 (171)=17 s17=2a1+a17 n=21+17 17=153  s=16+18=34   Verifying Solution:   S=1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+18=154



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