Find what percent of the perfect squares less than 1000 that ends in a 6. (Don't forget that zero is a perfect square.)

Perfect squares  < 1000

0 , 1, 4 , 9 , 16 , 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225, 256. 289, 324, 361, 400. 441. 484, 529. 576, 625, 676, 729, 784, 841, 900, 961

There are 32  perfect squares < 1000

6  end  in a "6"

So

6  / 32 = 3/ 16   = 18.75 %