Can a brick which measures 9cm by 12cm by 25cm pass down a cylindrical pipe of diameter 14cm

It can pass down the pipe if the height or the width of the brick are smaller than 14cm, which it is in this case. it doesn't matter how long the brick is, it's all about the height and the width

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.