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1. How many prime numbers are there between 45 and 72?
- A. 5
- B. 5
- C. 5
- D. 5
Answer: Option B
Explanation:
between 45 and 72 prime numbers are = 47, 53, 59, 61, 67, 71
so, there are 6 prime numbers between 45 and 72
ans : 6
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