1
Question
Which one number can be helped at the sign (?) of interrogation?
15 6 3 13 3 9 8 2 ? 20 7 11
Which one number can be helped at the sign (?) of interrogation?
| 15 | 6 | 3 |
| 13 | 3 | 9 |
| 8 | 2 | ? |
| 20 | 7 | 11 |
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Solution
The correct option is B 1
Column No. 1 follows this particular rule
15+13−8=20
Column 2
6+3−2=7
Therefore, in column 3
3+9−x=11
x=1
Answer is Option A
Column No. 1 follows this particular rule
15+13−8=20
Column 2
6+3−2=7
Therefore, in column 3
3+9−x=11
x=1
Answer is Option A
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