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Find the values of the letters in each of the following and give reasons for the steps involved Q - 1

Q1. Find the values of the letters in each of the following and give reasons for the steps involved.

                                                                                                                                                                          

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Here we are adding two numbers and unit place of the first number and the second number is A and  5 respectively. unit place of the answer is 2 so the way we can get this result is when we get 12 on adding unit places of both number i.e.

                                                            A + 5 = 12

                                which implies      A = 12 - 5 = 7.

Ten's digit of both numbers are 3 and 2.remainder=1

          so ten's digit of the answer(B) = 3 + 2 + 1 = 6

 

Hence A= 7 and B = 6.

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