A student is ranked 13th from right and 8th from left.how many are there?  Options
A) 18 B) 19 C) 20 D) 21 E) 22
13th from right means = x + 12   8th from left means = 7 + x   Total = 12+7+1= 
<gadget id="calculator">12+7+1</gadget>
<output>20</output>
20   ANSWER:20
<result>C</result>
A student is ranked 13th from right and 8th from left.how many are there?