The sum 50

The sum of five consecutive integers is 385. Which one of these five integers is prime?

Correct answer:

x =  79

Step-by-step explanation:

a1+a2+a3+a4+a5=385  a+(a+1)+(a+2)+(a+3)+(a+4)=385  5a=375  a=5375=75  a=75  a1=a=75 a2=a+1=75+1=76 a3=a+2=75+2=77 a4=a+3=75+3=78 a5=a+4=75+4=79  x=a5=79



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