Can you make number 10 from 1, 1, 5, 8 using each number ONCE only. Your are allowed to use
+, -, x, /, ( ) only. Thanks for help.
Here is one way:
8 / [1 - 1/5] =10
[ √ (5 -1) ] / 1 + 8 =
[ √4 ] / 1 + 8 =
[2] / 1 + 8 =
2 + 8 =
10
Sorry CPhill: Square root is NOT allowed according to the question!. Thanks.
that is the only answer
