A fry is not a standard measure.
0.3 kilograms
I suppose it would help if there was at least one complete sentence, And also if they mentioned how many kilograms mother actually bought. But to read the question it makes no sense.
1.5 kilograms of course!
0.379 Kilograms 0.379 Kilograms
170 kilograms equals 170 kilograms.
200
1000000 kilograms is equal to 1000000 kilograms.
27.5 pounds = 12.47 kilograms
4.52 kilograms.
0.018 kilograms...
3.5 kilograms
0.1053 kilograms.