Question
Joe has listed the first 4 multiples of 7 as:
7 14 22 28
Identify the incorrect one.
- 7
- 14
- 22
- 28
Hint:
We are given that Joe has listed the multiples of 7. They are first four multiples of 7. But, there is one incorrect multiple. We are asked to find the incorrect multiple. We will do it by writing the first four multiples of 7 and comparing with Joe’s list.
The correct answer is: 22
Joe’s list of multiples of 7 is 7, 4, 22, 28
A multiple is product of given with number with different numbers. We have to write the first 4 multiples of 7. For that, we will multiply 7 by 1, 2, 3 and 4.
7 × 1 = 7
7 × 2 = 14
7 × 3 = 21
7 × 4 = 28
So, the multiples of 7 are 7, 14, 21, 28
If we compare it with Joe’s list, we will find that his third term is 22. It is supposed to be 21.
Therefore, the incorrect term is 22.
We have to be careful about the order of multiples.
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