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In 8 years, Polly’s age, which is currently p, will be twice
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14 Jun 2018, 14:02
14 Jun 2018, 14:02
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Question Stats:
60% (00:50) correct
39% (01:01) wrong based on 81 sessions
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In 8 years, Polly’s age, which is currently p, will be twice Quan’s age, which is currently q.
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.
Quantity A |
Quantity B |
p – 8 |
\(2q\) |
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.
Re: In 8 years, Polly’s age, which is currently p, will be twice
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15 Jun 2018, 10:04
15 Jun 2018, 10:04
Can someone please give official answer and also explain, especially 'A'?
Re: In 8 years, Polly’s age, which is currently p, will be twice
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16 Jun 2018, 13:25
16 Jun 2018, 13:25
1
Expert Reply
Explanation
This is an algebraic translation question, so start by translating the given information into equations. Remember to add 8 to both Polly and Quan’s ages, because they will both be 8 years older in 8 years!
\(p + 8 = 2(q + 8)\)
\(p + 8 = 2q + 16\)
\(p = 2q + 8\)
\(p - 8 = 2q\)
Hence option C is correct!
This is an algebraic translation question, so start by translating the given information into equations. Remember to add 8 to both Polly and Quan’s ages, because they will both be 8 years older in 8 years!
\(p + 8 = 2(q + 8)\)
\(p + 8 = 2q + 16\)
\(p = 2q + 8\)
\(p - 8 = 2q\)
Hence option C is correct!
