CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

If the square of an integer ends in 6, then the units digit of the integer is:
  1. Either 4 or 6
  2. Neither 4 nor 6
  3. 6
  4. 4


Solution

The correct option is A Either 4 or 6
When integers whose units digit is 4 are multiplied by themselves, the units digit of the product is 6, since 42=4×4=16.
Similarly, when integers whose units digit is 6 are multiplied by themselves, the units digit of the product is 6.

Hence, if the square of an integer ends in 6, the units digit of the integer may be 4 or 6.

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More



footer-image