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A certain amount doubled in 7 years at a rate of R% per a
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08 Apr 2025, 10:36
08 Apr 2025, 10:36
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Question Stats:
85% (01:12) correct
14% (01:05) wrong based on 14 sessions
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A certain amount doubled in 7 years at a rate of $\(\mathrm{R} \%\)$ per annum
Quantity A |
Quantity B |
R |
15% rate of interest |
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Re: A certain amount doubled in 7 years at a rate of R% per a
[#permalink]
12 Apr 2025, 04:30
12 Apr 2025, 04:30
1
Expert Reply
Column A: $\(2 P=P+\frac{7 P R}{100} \Rightarrow \frac{7 P R}{100}=P \Rightarrow R=\frac{100}{7}=14.28 \%\)$.
Column B: $\(15 \%\)$.
Hence, Column B > Column A.
Thus, the correct answer is $\(B\)$.
Column B: $\(15 \%\)$.
Hence, Column B > Column A.
Thus, the correct answer is $\(B\)$.
gmatclubot
Re: A certain amount doubled in 7 years at a rate of R% per a [#permalink]
12 Apr 2025, 04:30
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