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How many numbers between 50 and 250 (inclusive) are not perfect squares?

 Apr 15, 2018

Best Answer 

 #1
avatar+974 
+2

The strategy here is see how many numbers there are, and then subtract the total amount of perfect squares.

 

There are a total of $250 - 50 + 1$, or 201, numbers.

 

Between 50 and 250, there are perfect squares:

 

64, 81, 100, 121, 144, 169, 196, and 225.

 

8 out of the 201 numbers are perfect squares.

 

So there are 201 - 8 numbers that are not perfect squares. 

Your final answer will be 193. 

 Apr 15, 2018
 #1
avatar+974 
+2
Best Answer

The strategy here is see how many numbers there are, and then subtract the total amount of perfect squares.

 

There are a total of $250 - 50 + 1$, or 201, numbers.

 

Between 50 and 250, there are perfect squares:

 

64, 81, 100, 121, 144, 169, 196, and 225.

 

8 out of the 201 numbers are perfect squares.

 

So there are 201 - 8 numbers that are not perfect squares. 

Your final answer will be 193. 

GYanggg Apr 15, 2018

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