+0  
 
-4
222
7
avatar+81 

This is just a fun math question to solve, I don't really need help

 

 

A Student asks a teacher "how old are you?" The teacher responds by saying "If I was your age, you would be 3, and when you are my age, I will be 63" how old is the teacher currently?

 

If you want the answer here it is:

 

 

 

 

 

 

The teacher's age is 43 and the student's age is 23

 Apr 23, 2019
 #1
avatar+82 
0

I don't really no but what grade is this fun math question??

 Apr 23, 2019
 #2
avatar+81 
-6

The question is from a youtube video, I think its from a Chinese TV show. I just saw it on youtube and saw how it was really intresting, it was like a tv show about 3rd graders solving math questions. 

So I would assume 3rd grade? (in China?)

doorknoob  Apr 23, 2019
 #3
avatar+106539 
+3

Let the student's age  = S

Let the difference in their ages = D

 

So...

The student's age now minus the difference in their ages  = 3....and....when the student is the teachers age, the teacher will be 63....so.....the teacher's age now must be (S + D) .....and in D years.....the student will be S + D years old  and the teacher will be (S + D) + D  years old........so.... 

S - D  = 3

(S + D) + D  =  66   simplify

 

S - D  = 3

S + 2D  = 63       subtract the first equation from the second

 

3D  = 60

D  = 20

 

S - D  = 3

S = 20 + 3   =  23

 

And the teacher's age  =  23 + 20  =  43

 

 

cool cool cool

 Apr 23, 2019
 #4
avatar+81 
-6

Thats right!

 

 smiley

doorknoob  Apr 23, 2019
 #5
avatar+82 
+1

Nice job CPhill and just wondering are you a teacher??

 Apr 23, 2019
 #6
avatar+106539 
+1

HAHAHA!!!!......sadly, no I'm not.....

 

 

cool cool cool

CPhill  Apr 23, 2019
 #7
avatar
+1

Another way:

 

Let the current teacher's age = T
Let the current student's age = S
T - S = S - 3.............(1)
T - S =63 - T............(2), solve for S, T
S = 23 - Student's age
T = 43 - Teacher's age.

 Apr 23, 2019

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