Question #dd7b5

2 Answers
Oct 13, 2017

I got: #14,15 and 16#

Explanation:

Call your integers:
#n#
#n+1#
#n+2#
we get
#n+(n+1)+(n+2)=45#
#3n=45-3#
#n=42/3=14#

So our integers are:

#14,15 and 16#

Oct 13, 2017

13,15,17

Explanation:

There are two methods:
1. Guess random numbers and check
2. Use an equation.

To use an equation, we know that #15*3# is 45, so we can automatically adjust that the middle number is 15.

Then, since it's consecutive, we can just add the right number by 2 then subtract the left number by 2 to get 13, 15, and 17.

This actually works for any other similar situation, for example:

Find 3 consecutive integers that add up to 90.

#90/3=30#.

#30-2=28, 30+2=32#.

#28+30+32=90#.

Note: However, this does depend on the situation at hand, since it can ask for consecutive even or odd integers.