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Math Question

Find the question in the attachment.
Please send answer with explanation.

Math Question Find the question in the attachment. Please send answer with explanation-example-1
User Markee
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We know there are no squares between 100² and 101².

So we just want to know how many numbers between a and b exclusive, which is

n = b - a - 1

For example between 10 and 20 exclusive we get n=20-10-1=9, which is right.

For our problem here we can factor using the difference of two squares and get:

n = 101² - 100² - 1 = (101 - 100)(101 + 100) - 1 = 1(201) - 1 = 200

Answer: d. 200

User Obotezat
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