Question 7 - Finding missing letters - Playing with Numbers

Last updated at May 29, 2023 by

Ex 16.1, 7 - Find the values of letters - A B x 6 = BBB - Ex 16.1

Ex 16.1, 7 - Chapter 16 Class 8 Playing with Numbers - Part 2
Ex 16.1, 7 - Chapter 16 Class 8 Playing with Numbers - Part 3 Ex 16.1, 7 - Chapter 16 Class 8 Playing with Numbers - Part 4 Ex 16.1, 7 - Chapter 16 Class 8 Playing with Numbers - Part 5

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Question 7 Find the values of the letters in each of the following and give reasons for the steps involved. Here, B × 6 ends with B. We put different values of B, and check which ends with B ∴ B can be 0, 2, 4, 6 or 8 Here, B × 6 ends with B. We put different values of B, and check which ends with B ∴ B can be 0, 2, 4, 6 or 8 For B = 0 Which is not possible ∴ B ≠ 0. For B = 2 Here, A2 = 222 ÷ 6 It comes out 37 Now, A2 = 37 Which is not possible So, B = 2 is not possible For B = 4 Here, A4 = 444 ÷ 6 It comes out 74 Now, A4 = 74 Which is possible So, A = 7 & B = 4 Checking for A = 7 and B = 4 Hence verified ∴ A = 7 and B = 4

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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.