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Last updated at March 30, 2023 by Teachoo
Ex 16.1, 9 Find the values of the letters in each of the following and give reasons for the steps involved. Here, B + 1 ends with 8. We put different values of B, and check which ends with 8 ∴ B = 7 Now, Putting B = 7 Now A + 7 ends with 1 Checking different values of A ∴ A = 4