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**Q1. Find the smallest no. by which 180 must be multiplied so that the product is a perfect square. **

**(a) 2**

**(b) 3**

**(c) 5 **

**(d) 7 **

**Q2. Which of the following no. is not a perfect square? **

**Q3. The Square root of 2025 is **

**Q4. Find the smallest no. by which the given no must be divided so that the 2904 becomes a perfect square **

**Q5. The greatest no. of two digits which is a perfect square is **