Question 6

In the adjoining figure the number in each circle is the sum of the numbers in the two adjacent circles below it. 

(a) Find X, writing the steps systematically. 

(b) What is the least positive number to be added to X so that the result is a perfect square? 

(c) What is the least positive number to be subtracted from X so that the result is a perfect square?

image


Correct Answer: X=88 add=12 subtract=7

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