plz solve this questions with solutions if the answer will correct i will add it to the brainlist answer

Answers
Firstly, I would like to point out an error. The unit kilograms is used only for mass, and not for weight. And as mass doesn't change anywhere in this universe (unless you are moving close to the speed of light) I will refrain from taking kilograms as the unit, but will take newtons (N) (a unit of weight) as the unit, as weight depends on the gravitational pull, a force, and changes from place to place.
Given ratio =
78:13 = 6:1
Now, ratio of Anand's weight on earth to Anand's weight on moon =
45:x (taking his weight on moon as x)
So, they will be in proportion (ratios will be same)
45:x: :6:1
Multiplying the means and extremes, we get
45×1 = 6×x
Rearranging, we now have
x = 45/6 = 7.5N
Therefore, he weighs 7.5N on moon.
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