If A got 70 marks and B got 80 marks, then what percent of A's mark is B's mark? Select:  A) A)60%  B) B)80%  C) C)65%  D) D)87.5%  E) of these
A's marks =80 ; B's marks = 70.   Let x% of A = B =&gt; x/100 * 80 = 70   =&gt; x = (70 * 100)/80= 
<gadget id="calculator">(70 * 100)/80</gadget>
<output>175/2 = around 87.5</output>
87.5   B's marks is 87.5% of A's marks.   ANSWER:87.5%
<result>D</result>
If A got 70 marks and B got 80 marks, then what percent of A's mark is B's mark?