How many positive integers less than 300 can be formed using the numbers 1, 2, 3 and 5 for the digits?	Choose the correct choice from the following
A) 48 B) 52 C) 66 D) 68 E) 84
Notice that we can find the number of 2 and 3 digit numbers by just assuming the first digit can also be zero:   0 1 1   1 2 2   2 3 3   2 5 5   Number of possibilities = 3*4*4= 
<gadget id="calculator">3*4*4</gadget>
<output>48</output>
48.   Then, just add up the number of 1 digits numbers= 4, so total is  48+4= 
<gadget id="calculator"> 48+4</gadget>
<output>52</output>
52.   Answer: 52
<result>B</result>
How many positive integers less than 300 can be formed using the numbers 1, 2, 3 and 5 for the digits?