Six students wrote science exam. Their average marks are 70. Five Students got 65, 75, 55, 72 and 69 marks respectively. Therefore what is the marks of the sixth student? Pick:
A) 84  B) 68  C) 85  D) 75  E) 42
EXPL84N84TION   Total marks of 5 students = (65+75+55+72+69)= 
<gadget id="calculator">(65+75+55+72+69)</gadget>
<output>336</output>
336   Required marks= [ (70 x 6) – 336 ]   = (420 – 336)   = 84   84nswer 84
<result>A</result>
Six students wrote science exam. Their average marks are 70. Five Students got 65, 75, 55, 72 and 69 marks respectively. Therefore what is the marks of the sixth student?