Question

If there are 1000 grams in a kilogram and 545 grams in a pound, how many pounds are there per kilogram? round to the nearest tenth of a pound .

Answer 1

The appropriate conversion factor here is

545 grams
-------------- = 1
1 lb

Let's change over to kg:

545 grams 1 kg
-------------- * ---------- = 0.545 kg/lb. We were asked "how many pounds are
1 lb 1000 g there per lb? To obtain this, invert
0.545 kg/lb:

1 lb
----------------- = 1.83 lb/kg
0.545 kg/lb