To determine which number is divisible by both 3 and 9, we can check the divisibility of each option:
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27:
- Divisible by 3: Yes (27 ÷ 3 = 9)
- Divisible by 9: Yes (27 ÷ 9 = 3)
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48:
- Divisible by 3: Yes (48 ÷ 3 = 16)
- Divisible by 9: No (48 ÷ 9 = 5.33)
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39:
- Divisible by 3: Yes (39 ÷ 3 = 13)
- Divisible by 9: No (39 ÷ 9 = 4.33)
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52:
- Divisible by 3: No (52 ÷ 3 = 17.33)
- Divisible by 9: No (52 ÷ 9 = 5.78)
Based on this analysis, the only number that is divisible by both 3 and 9 is 27.