How many kilograms do dogs, cats and rabbits weigh?
By looking at the available data, can you calculate the total weight of the three animals?
Here are two basic calculations:
Method 1:
Assuming the first three figures are added together, there will be two rabbits, two cats, two dogs with a total weight of: 10+20+24=54 kg.
Thus, the sum of rabbits, cats and dogs is: 54/2=27 kg.
Method 2:
From picture one we have rabbit + cat = 10kg and picture two is rabbit + dog = 20kg.
From that we infer: dog is 10 kg more than cat.
Combined with the figure three, cat + dog = 24 kg, we deduce dog = (24+10)/2= 17kg, cat= (24-10)/2= 7 kg, combine figure one or two to get rabbit is 3 kg.
So in the last picture we have dog + cat + rabbit = 17 + 7 + 3 = 27 kg.
