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If q and r are prime numbers greater than 3 and qr^2<450
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04 Jul 2022, 07:28
04 Jul 2022, 07:28
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Question Stats:
77% (01:39) correct
22% (01:00) wrong based on 9 sessions
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If q and r are prime numbers greater than 3 and \(qr^2\)<450,what is the greatest possible value of r?
A. 5
B. 7
C. 11
D. 13
E. 17
A. 5
B. 7
C. 11
D. 13
E. 17
Re: If q and r are prime numbers greater than 3 and qr^2<450
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04 Jul 2022, 08:27
04 Jul 2022, 08:27
1
\(q\) and \(r\) are prime numbers greater than \(3\) and \(qr^2<450\)
Since both are prime nos. We can use the combinations for values of \(q\) & \(r\)
Eligible nos are \(5, 7, 11, 13, ...\)
But \(qr^2<450\)
The maximum value of any can be \(7\) only.
Answer B
Since both are prime nos. We can use the combinations for values of \(q\) & \(r\)
Eligible nos are \(5, 7, 11, 13, ...\)
But \(qr^2<450\)
The maximum value of any can be \(7\) only.
Answer B
Re: If q and r are prime numbers greater than 3 and qr^2<450
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04 Jul 2022, 10:59
04 Jul 2022, 10:59
