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

wiskdls Apr 15, 2018

#1**+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.

GYanggg Apr 15, 2018

#1**+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