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How many of the 1000 whole numbers from 1 to 1000 are both even and the square of a whole number?
 

Answer Choices

A. 15

B. 16

C. 30

D. 31

 Feb 5, 2019
 #1
avatar+79 
+2

An even perfect square is produced by an even number. The smallest, being 2, which 2^2 = 4.

 

Then, the largest, being 30, which is 30^2=900.

 

Counting all of the even numbers from 2-30 yields your answer is A.15

 Feb 5, 2019

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