評論
打印
Alice weighs a kilograms.
Bob weighs b kilograms less than Alice.
ab does not equal to 0
Bob weighs b kilograms less than Alice.
ab does not equal to 0
Question A
The sum of Alice's weight and Bob's weight
Question B
2a kilograms
A.Quantity A is greater.
B.Quantity B is greater.
C.The two quantities are equal.
D.The relationship cannot be determined from the information given.
