Question

The coldest surface temperature on the Moon is 57 degrees colder than twice the coldest surface temperature on Earth. What is the coldest surface temperature on Earth?

Answer 1

Since the ultimate question being asked is "What is the coldest surface temperature on Earth?" this implies that we should be given the coldest temperature on the moon. However, that information isn't given to us. So this problem cannot be answered in its current form.

Answer 2

Coldest temperature of the Moon

Explanation:

Suppose the coldest temperature of earth is x degrees,

According to the question,

The coldest temperature of the Moon = 2 × coldest temperature of earth - 57°

= 2x - 57

Since, for finding the value of x in the above expression,

We need the coldest temperature of the Moon,

Hence, we need the coldest temperature of the moon for finding the coldest temperature of Earth.