The average weight of 10 students decreases by 6 kg when one of them weighing 120 kg is replaced by a new student. The weight of the student is Choose the correct choice:
A) 62 kg
B) 60 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 = 6 kg   =&gt; (120-x)/10 = 6   =&gt; x = 60   Answer : 60 kg
<result>B</result>
The average weight of 10 students decreases by 6 kg when one of them weighing 120 kg is replaced by a new student. The weight of the student is