Question

Which is the least number to be added to 9809 to make it a perfect square

Answer 1

Answer:

191

Step-by-step explanation:

Let us consider the perfect squares close to 9809

98 * 98 = 9604

99 * 99 = 9801

100 * 100 = 10,000

Since we need to add number, the nearest perfect square is 10,000.

Thus the least number to be added = 10,000 - 9809 = 191.