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Question 10 - Letters for Digits - Addition Questions - Playing with Numbers

Last updated at May 29, 2023 by

Ex 16.1, 10 - Find the values of letters - 1 2 A + 6 A B = A09

Ex 16.1, 10 - Chapter 16 Class 8 Playing with Numbers - Part 2
Ex 16.1, 10 - Chapter 16 Class 8 Playing with Numbers - Part 3 Ex 16.1, 10 - Chapter 16 Class 8 Playing with Numbers - Part 4

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Transcript

Question 10 Find the values of the letters in each of the following and give reasons for the steps involved. Here, A + B ends with 9 A can be 0, 1, 2, 3,………..8, 9 B can be 0, 1, 2, 3…………8, 9 If we take maximum values of A and B, i.e. For A = 9 , B = 9 A + B = 9 + 9 = 18 ∴ A + B ≠ 19 So, A + B must be 9 ∴ A + B = 9 Hence, 2 + A will ends with 0. We put different values of A, and check which ends with 0 ∴ A = 8 Putting A = 8 Here, ∴ B = 1 Checking Putting A = 8, B = 1 Hence verified ∴ A = 8 and B = 1

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.