Q. 245.0( 1 Vote )

# Fill in the blank

Adding all the digits according to their places, 20 + B + 10A + B = 80 + A 9A + 2B = 60 9A = 60-2B

Since A and B both are whole numbers, 60-2B should be divisible by 9. 60-2B = 54 so B = 3.

Substituting B = 3 in 9A + 2B = 60,

we get A = 6.

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