The average weight of 8 students decreases by 5 kg when one of them weighing 86 kg is replaced by a new student. The weight of the student is	Choose the correct choice:
A) 46 kg  B) 48 kg  C) 70 kg  D) 72 kg  E) None of these
Explanation :   Let the weight of student be x kg.   Given, Difference in average weight = 5 kg   =&gt; (86-x)/8 = 5   =&gt; x = 46   46 kgnswer : 46 kg
<result>A</result>
The average weight of 8 students decreases by 5 kg when one of them weighing 86 kg is replaced by a new student. The weight of the student is