In a row of trees, a tree is 7th from the left and 14th from the right end. How many trees are there in the row?

1. In a row of trees, a tree is 7th from the left and 14th from the right end. How many trees are there in the row?

[Senior Officer 2017 [MCQ] : 2017]

1. 19

2. 18

3. 21

4. 20

Answer

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