If the digits of a two-digit number are interchanged, the new number with original tens digit $t$ and units digit $u$ is

Question

If the digits of a two-digit number are interchanged, the new number with original tens digit $t$ and units digit $u$ is—

Accepted Answer

$10u + t$

Answer

$10t + u$

Answer

$t + u$

Answer

$tu$

If the digits of a two-digit number are interchanged, the new number with original tens digit ttt and units digit uuu is—