Question

if 22.5 m of a uniform iron rod weight 85.5 kilogram what will be the length of 22.8 kilogram of the same road

Answer 1

This is question of direct variation.
Since it is uniform, its density will be same and radius is not given so we will assume it is constant.
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Mass of Iron rod                              Lenght of Iron rod
85.5 kg                                             22.5 m
22.8 kg                                             x
Direct variation
85.5 * x = 22.8 * 22.5
x = 513 / 85.5
x = 6 m
Therefor, length of the iron rod will be 6 m.

Answer 2

Answer:

6m

Step-by-step explanation:

It is a case of direct variations

x/y=k(constant)

85.5kg/22.5gm=22.8kg/x

x= 22.5×22.8kg÷85.5kg

x=513kg/85.5kg

x=6m