Level 3
In a weight-lifting competition, the first weight-lifter lifted a mass of 300 kg 300 g while the second weight-lifter lifted 50 kg 300 g more. Given that the third weight-lifter lifted 40 kg 500 g more than the second weight-lifter, what is the total mass that the 3 of them lifted?
Level 3
A baby elephant weighs 85 kg. A young elephant is twice as heavy as a baby elephant. An adult elephant is thrice as heavy as a young elephant. Find the mass of the adult elephant.
Level 3
Mrs Chan bought 8 kg of chicken thighs at $6 per kilogram and 5 kg of hotdogs at $4 per kilogram. She paid for these items with 5 pieces of $20 notes. How much change did she receive?
Level 3
Mrs Lee bought 6 kg of rice at $5 per kg and 5 kg of sugar at $3 per kg. She had $68 left after paying for these items. How much money had she at first?
Level 3
Mr Lee is 45 kg heavier than his son, Jake and 24 kg heavier then his daughter, Emerald. Given that their total mass is 252 kg, how much does Mr Lee weigh?
Level 3
The total mass of 2 encyclopedias and 3 comic books is 17 kg. Each encyclopedia weighs 3 kg 500 g more than each comic book. What is the mass of 1 comic book? Express the answer in grams.
