The difference in the weight of a 170-pound person on Venus and Mars will be 85 pounds.
Solution:
Given:
The weight of an object on Venus is about [tex]\frac{9}{10}[/tex] it's weight on Earth
The weight of an object on Mars is about [tex]\frac{2}{5}[/tex] it's weight on Earth.
To find: The difference in the weight of a 170-pound Person on Venus and Mars.
When somebody weighs 170-pound , then his weight on Venus will be as follows,
[tex]$\frac{9}{10} \times 17=153\text{ pounds }[/tex]
Then, his weight on Mars will be as follows,
[tex]$\frac{2}{5} \times 170=68\text{ pounds }[/tex]
On subtracting both the values we get,
[tex]$153-68=85\text{ pounds }[/tex]
Therefore, the difference is 85 pounds.
