Question

How many combinations of two-digit numbers having ${}^{\prime }{8}^{\prime }$ can be made from the following numbers?
$8,5,2,1,7,6$

• A. $9$
• B. $10$
• C. $11$
• D. $12$

Answer 1

Answer: (C)

$11$

The possible two-digit number are
$88,85,82,81,87,86,58,28,18,78,68$
These are $11$ in number.