Question #92422

2 Answers
Apr 1, 2017

I got 33

Explanation:

Call your numbers:
n
n+1
n+2
n+3
So we get:
n+(n+1)+(n+2)+(n+3)=130
rearrange and solve for n:
4n+6=130
4n=124
n=124/4=31
So the third in the sequence will be 33

Apr 1, 2017

33 (see explanation)

Explanation:

Since the sum consists of 4 consecutive integers we can write the following and solve for x

x+(x+1)+(x+2)+(x+3)= 130

4x+6=130 -> 4x+cancel(6-6)=130-6

4x=124 -> cancel(4/4)x=124/4

x=31

Thus the four consecutive integers are as follows:

31+(31+1)+(31+2)+(31+3)=130

or

31,32,33,34

We can verify this by substituting 31 into the equation we used to solve for x

31+32+33+34=130

130=130

Finally, since we were asked to find third number of the sequence, we know that our third number is 33