Chapter 1: Sets
Chapter 1: Sets
Exercise
Question
Question: 3 (iii)
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Write the following sets in roster form:
(iii) C = {x : x is a two-digit natural number such that the sum of its digits is 8}
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Answer
1
Find all two-digit numbers whose tens digit and ones digit add up to 8. Start with the tens digit as 1 and increase it one by one.
Answer: C = {17, 26, 35, 44, 53, 62, 71, 80}