Question

Average weight of 6 men decreases by 3 kg when one of them weighing 80 kg is replaced by a new man the weight of the new manners

Answer 1

by logical way ......

Answer 2

Answer:

The correct answer is 62 kg

Step-by-step explanation:

[ The given problem might be about finding the weight of newly added man ]

Given data

Average weight of 6 men decreases by 3 kg when one of them weighing 80 kg is replaced by a new man the weight  

Step-by-step explanation:

Let a be the weight of the 5 men and from given data 80 is one the weight  

average weight of 6 men = $\frac{a+ 80}{6}$  

from given data 80 kg replaced by a new weight

Let's assume that b be the new weight  

average of new weights  = $\frac{a+b}{6}$   [ which is 3 less than  $\frac{a+ 80}{6}$ ]

                            $\frac{a+80}{6} - 3$ =   $\frac{a+ b}{6}$        

                             $\frac{a+ 80 - 18 }{6} = \frac{a+b}{6}$  

                            a + 80 -18 = a + b  [ divided by 6 ]

                            b = a - a + 80 -18      

                                  b = 62 kg