Question #1ea10

3 Answers
Oct 15, 2017

68,70,7268,70,72

Explanation:

I'm not sure what you mean by "find two numbers". I'll just show you how to get all three and hopefully you can get your answer from that.

Let's let xx be the middle of the three even integers. Then the even integer less than xx has to be x-2x2 and the one above has to be x+2x+2 because the even integers are consecutive.

We know that the sum is 210210. Thus:

(x)+(x-2)+(x+2)=210(x)+(x2)+(x+2)=210

3x=2103x=210

x=70x=70

Thus, our middle even integer is 7070. The other even integers are 70-2=68702=68 and 70+2=7270+2=72.

As we can see, 68,70,7268,70,72 are consecutive even integers and 68+70+72=21068+70+72=210.

Oct 15, 2017

Any two numbers from the set {68,70,72}{68,70,72}

Explanation:

Any number is even when it is doubled, so e=2n, ninZZ

So, a set of even numbers will be E={2n,2n+2,2n+4,\cdots}

Three consecutive numbers that add up to 210 will follow the formula:
210=2n+2n+2+2n+4=6n+6

6(n+1)=210

n+1=210/6=35

n=35-1=34

The three consecutive numbers that add up to 210 are {2(34),2(34)+2,2(24)+4}={68,70,72}

Oct 15, 2017

68, 70, 72

Explanation:

Let the consecutive numbers be x, x+2, x+4

x + (x+2) + (x+4) = 210 -> "Statement"

Solving..

x + x + 2 + x + 4 = 210

3x + 6 = 210

3x = 210 - 4

3x = 204

x = 204/3

x = 68

Hence

The numbers are

x = 68,

x + 2 = 70

x + 4 = 72