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If k is the quotient when a is divided by b, and a and b are distinct

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If k is the quotient when a is divided by b, and a and b are distinct  [#permalink]

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New post Updated on: 16 Dec 2018, 02:16
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41% (02:22) correct 59% (02:01) wrong based on 49 sessions

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If k is the quotient when a is divided by b, and a and b are distinct single digit prime numbers, what is the value of the tenths digit of k ?

(1) b is even.

(2) k > b

Originally posted by vishalkss on 15 Dec 2018, 11:36.
Last edited by Bunuel on 16 Dec 2018, 02:16, edited 1 time in total.
Renamed the topic and edited the question.
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Re: If k is the quotient when a is divided by b, and a and b are distinct  [#permalink]

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New post 17 Dec 2018, 03:57
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a and b can be 2,3,5,7

St.1: b is even. This means that b is 2 as it is the only even number and a can be other odd number.
Odd number/ 2 = x.5 (x is integer). The tenth digit is always 5.

St.2: k> b.
It's only possible when a=2, b=7 and k=3.5. Tenth digit is 5.

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Re: If k is the quotient when a is divided by b, and a and b are distinct   [#permalink] 17 Dec 2018, 03:57
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If k is the quotient when a is divided by b, and a and b are distinct

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