Originally Posted by

**Debsta** No, for a few reasons:

1. If you solve this equation you will get x = 6/5. Does that give you the correct answer?? No, because that would mean 1 hour 12min.

If they are working together they will take less than 20 min (which is how long Ginger can do it on her own).

2. Look at the units.

On the LHS, you have hours + hours (which will give hours).

On the RHS, your "units" are 1/hour.

If the units are not the same then the expressions can not be equal.

Have another go at this one.