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4:52 PM | 0.0KB/s @| (™) = Fc OPTI Sc PTTL KGL _ odor, , € Exercise 16.1, , , , Question 8:, Find the values of the letters in the following and give reasons for the steps involved., A l, + 1B, B O, Answer 8:, , On putting B = 9, we get 9+1=10, Putting 0 at ones place and carry over 1, we get, For A=7, > 7+1+1=9, , Hence, A=7andB=9, , Question 9:, Find the values of the letters in the following and give reasons for the steps involved., , 2AB, +A B 1, B 1 8, Answer 9:, On putting B = 7,, > 7+1=8, , Now A =4, then4+7=11, Putting 1 at tens place and carry over 1, we get, 2+4+1=7, , Hence, A=4andB=7, , Question 10:, Find the values of the letters in the following and give reasons for the steps involved., , 124A, +6AB, A 0 9, , , , Answer 10:, Putting A = 8 and B = 1, we get, 8+1=9, Now againweadd 2+8=10, Tens place digit is ‘0’ and carry over 1., Now 1+6+1=8=A, , Hence, A=8 and B=1