Question

Q planetZ-Alpha timeworksdifferenty When 30 years has passed on earth only 4 years has passed on that planet. a) If someone aged 50 years on earth how much time would have passed on that planet?b) If someone aged 3 years on Z-Alpha how many would they have aged on earth?

Answer 1

We can use ratios to solve

30 years E 50 years E

---------------- = ----------------

4 years Z x years Z

Using cross products

30x = 4 * 50

30x = 200

Divide by 30

30x/30 = 200/30

x =6 2/3 years

30 years E y years E

---------------- = ----------------

4 years Z 3 years Z

Using cross products

30 *3 = 4y

90 = 4y

Divide by 4

90/4 = y

22.5 years