Tough and Tricky questions: Combinations.
The product of the digits of the four-digit number h is 30. No two digits of h are identical. How many different numbers are possible values of h?
Choose the correct choice from the following choices.
A) 24 B) 30 C) 36 D) 42 E) 54
24nswer = 24= 24   Let number =abcd   Given that a*b*c*d = 30   a,b,c,d can be 1,2,3,5   Number of ways = 4*3*2= 
<gadget id="calculator">4*3*2</gadget>
<output>24</output>
24
<result>A</result>
Tough and Tricky questions: Combinations.
The product of the digits of the four-digit number h is 30. No two digits of h are identical. How many different numbers are possible values of h?