Math Is Fun Forum

7ambalaz

Member

Registered: 2008-06-08

Posts: 1

Letters that represent numbers - Question

In each of these problems, letters represent single-digit numbers. If a letter is used more than once, it represents the same number in that problem. How many solutions can you find?

Question 1: AAA
               +BBB
                ------
                 CCC

Question 2: MMM
                 NNN
              + PPP
                ------
                 QQQ

Question 3: TTT
             x       S
                ------
                 RRR

Question 4: ABC
               +DEF
                ------
                 GHI

Dragonshade

Member

Registered: 2008-01-16

Posts: 147

Re: Letters that represent numbers - Question

I'll do the first one

If A+B< 10 , the solutions is A+B=C  (1,2,3) (1,3,4), so on..............
If A+B>or = 10 ,  AAA+BBB would be 4 digits, so it wont work

Monox D. I-Fly

Member

From: Indonesia

Registered: 2015-12-02

Posts: 2,000

Re: Letters that represent numbers - Question

For number 2, M + N + P < 10
Number 3, T < 4

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