A weightlifter lifts 72 kg. Which of the following weights is the same as 72 kg? (1 kg=1,000 g)
Athlete 1
Athlete 2
Weight in kg
28 kg
82 kg
Weight in g
The weight of 72 books is 9 kg.
(a)what is the weight of 85 such books?
(b)how many such books weigh 18 kg?