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Find the least number to be added to 1780 to make the sum a perfect square.
Question

Find the least number to be added to 1780 to make the sum a perfect square.

A.

72

B.

69

C.

49

D.

46

Correct option is B

Given:
Number = 1780
Concept Used:
To find the least number, check the square root of 1780 and the nearest perfect square.
Solution:
Square root of 1780 ≈ 42.19
Nearest perfect square = 43^2 = 1849
Therefore, 1849 - 1780 = 69

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