- A9
- B11
- C10
- D12
Step-by-Step Solution
The watering dates are 1, 4, 7, …, 31: an arithmetic list with step 3. Number of dates = (31 − 1) ÷ 3 + 1 = 11. (10 forgets to count the first day.)
Answer: B) 11
Nandini waters her tulsi plant every third day, starting on the circled date. How many times does she water it in the month shown?
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