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Question

Ted gave a puzzle to Sarah and asked her to solve it. Can you help her find the missing number?


A
12
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B
20
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C
6
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D
18
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Solution

The correct option is D 18

From the given image, we can observe that the logic used is as follows:

Number in the 3rd column of every row = Number in the 1st column + Number in the 2nd column + Number in the 2nd column

Following this, we observe:

20 = 4 + 8 + 8

Similarly, 15 = 9 + 3 + 3

So, the missing number will be 6 + 6 + 6 = 18.

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