- A19
- B21
- C18
- D20
Step-by-Step Solution
After swapping, Anu occupies Binu's place, which is both 12th from the left and 9th from the right, so total = 12 + 9 - 1 = 20.
Answer: D) 20
Anu is 7th from the left and Binu is 9th from the right in a row of children. If they interchange positions, Anu becomes 12th from the left. How many children are in the row?
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