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43 votes
43 votes
Grogg skips count by 5 starting at x. The sum of the first 5 numbers he says is 65. What is the value of x?

User Tiedt Tech
by
2.8k points

1 Answer

20 votes
20 votes

Answer: 11

Explanation:

Let the 5 numbers be x,x+1,x+2,x+3 and x+4.

Therefore,

x + x+1 + x+2 + x+3 + x+4 = 65

5x + 10 = 65

5x = 65 - 10

5x = 55

x = 55/5

x = 11

Therefore, the 5 numbers are 11, 12, 13, 14 and 15.

The first number is 11

User Mitzy
by
3.2k points
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