Chavi is counting numbers in twos from 10 onwards. Will she say 43? Explain why?
No, Chavi will not say 43.
Step 1: Start at 10 and add 2 repeatedly.
Step 2: Sequence: 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44...
Step 3: All numbers in this sequence are even.
Step 4: 43 is an odd number.
∴ 43 will never appear in this even-number sequence.
Explanation
Counting in twos from 10 produces only even numbers: 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44... Since 43 is an odd number, it will never appear in this sequence of even numbers.
Solution Steps
Step 1: Start at 10 and add 2 repeatedly
Step 2: Sequence: 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44...
Step 3: All numbers in sequence are even
Step 4: 43 is odd, so it will never appear