Question

7 boxes weight is 36.4 kg how much will 5 boxes weight

Answer 1

weight of 1 box

= 36.4/7
= 5.2 kg

weight of 5 boxes will be

= 5.2* 5
= 26 kg

Answer 2

Let "x" be the weight of 5 such boxes

             Number of boxes                    Weight of  
boxes
                     7                                            36.4 kg

                     5                                             x

If the number of boxes decreases then weight of boxes also decrease. So it is in direct variation.

                      7 x x = 5 x 36.4 

                       X = (5 x 36.4)/7

                      x = 182/7

                       x = 26 kg