1.36 kilos is 3 pounds.
3 kilos is 6.61 pounds.
7 pounds = 3.17514 kilos
1 lb is 0.454 kg, you do the math.
71.2 kilos is 11 st 3 lbs
There are 6.61387 pounds or 105.82192 ounces in 3 kilos.
depending on the length it is around 3--7 Kilos
31/16 pounds equates to 1.4 (1.38913) kilos.
3 kilos
To get 3% of anything, you multiply this "anything" (in this case, 39 kilos) by 3/100, or equivalently, by 0.03.
3 grams
It equals 3000 grams.