CAT 2019 Set-1 | Question: 36

Question

The following table represents addition of two six-digit numbers given in the first and the second rows, while sum is given in the third row. In the representation, each of the digits $0,1,2,3,4,5,6,7,8,9$ has been coded with one letter among A,B,C,D,E,F,G,H,I,J,K, with distinct letters representing distinct digits.

		B	H	A	A	G	F
+		A	H	J	F	K	F
	A	A	F	G	C	A	F

Which digit does the letter B represents _______

Answer 1

B=9
B is the second target for decoding, B+1=1, this is only possible if 9+1=10 and another 1 carried in from previous digit addition is included making it 9+1+1=11. So, B=9.

Please refer to my answer in the below link for a detailed approach.
https://aptitude.gateoverflow.in/5476/cat2019-1-35?show=7805#a7805