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    8 a 5

-   2 9 b

    c 8 8

 Feb 17, 2020
 #1
avatar+219 
0

Thanks for the A2A. First, look at the last digit column. B only makes sense for 7, as 15-7 is 8. 

 

Also, look at the first digit column and you'll see that C is 5. 

 

If you add 588 and 297, the answer is 885, which means a is 8. 

 

7+5+8 = 20.

 

Cheers!laugh

 Feb 17, 2020

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