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Alice weighs a kilograms, and Bob weighs b kilograms less t
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07 Jun 2017, 01:10
07 Jun 2017, 01:10
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Question Stats:
83% (00:44) correct
16% (01:53) wrong based on 106 sessions
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Alice weighs a kilograms, and Bob weighs b kilograms less than Alice.
ab ≠ 0
Quantity A |
Quantity B |
The sum of Alice’s weight and Bob’s weight |
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.
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Joined: 10 Apr 2015
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Re: Alice weighs a kilograms, and Bob weighs b kilograms less t
[#permalink]
07 Jun 2017, 15:16
07 Jun 2017, 15:16
2
Carcass wrote:
Alice weighs a kilograms, and Bob weighs b kilograms less than Alice.
ab ≠ 0
Quantity A |
Quantity B |
The sum of Alice’s weight and Bob’s weight |
2a kilograms |
Alice weighs a kilograms...
Alice's weight = a
...and Bob weighs b kilograms less than Alice
Bob's weight = a - b
We get:
Quantity A: a + a - b
Quantity B: 2a
Simplify:
Quantity A: 2a - b
Quantity B: 2a
From here, we can see that 2a - b must be less than 2a
Answer:
Show: ::
B
Re: Alice weighs a kilograms, and Bob weighs b kilograms less t
[#permalink]
11 Feb 2019, 20:46
11 Feb 2019, 20:46
Alice is aKg
Bob is akg-bkg
A: Sum of Bob and Alice= akg + akg -bkg= 2akg-bkg
B: 2a
Hence B is greater
Bob is akg-bkg
A: Sum of Bob and Alice= akg + akg -bkg= 2akg-bkg
B: 2a
Hence B is greater
