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Let n be the greatest 3-digit integer such that the product of its thr
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14 Feb 2022, 06:45
14 Feb 2022, 06:45
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Let n be the greatest 3-digit integer such that the product of its three digits is 90. What is the units’ digit of n?
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
Show: ::
unit digit
Let n be the greatest 3-digit integer such that the product of its thr
[#permalink]
14 Feb 2022, 19:46
14 Feb 2022, 19:46
1
\(n =\) three-digit integer
With the product of its integers \(= 90\)
\(90\) can be achieved by: \(9*10 , 3*30, 6*15, 2*45\)
We need the greatest no so the first digit will start with \(9\), which has two possibilities.
\(952\) , \(925\)
The greatest no \(= 952\) with the unit digit \(= 2\)
Answer A
With the product of its integers \(= 90\)
\(90\) can be achieved by: \(9*10 , 3*30, 6*15, 2*45\)
We need the greatest no so the first digit will start with \(9\), which has two possibilities.
\(952\) , \(925\)
The greatest no \(= 952\) with the unit digit \(= 2\)
Answer A
gmatclubot
Let n be the greatest 3-digit integer such that the product of its thr [#permalink]
14 Feb 2022, 19:46
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