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03 Jul 2018, 11:05
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If 0 < a/b < 1 and 0 < a, what is the value of integer a?
(1) The least common denominator of a/b and 1/5 is 10
(2) b = 2
(1) The least common denominator of a/b and 1/5 is 10
(2) b = 2
03 Jul 2018, 11:14
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(1) If least common denominator is 10, then b can be 2 or 10. If b is 2, then has to be 1, but if b is 10, then a can be any integer between 1 and 9 inclusive. Hence Insufficient.
(2) If b = 2, then only integer satisfying the inequality will be a = 1. Hence sufficient.
Hence, option B.
(2) If b = 2, then only integer satisfying the inequality will be a = 1. Hence sufficient.
Hence, option B.
19 Dec 2019, 07:06
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Bunuel
If 0 < a/b < 1 and 0 < a, what is the value of integer a?
(1) The least common denominator of a/b and 1/5 is 10
(2) b = 2
(1) The least common denominator of a/b and 1/5 is 10
(2) b = 2
\(0<a/b<1…0<a<b…a,b=integers\)
(1) The least common denominator of a/b and 1/5 is 10 insufic
\(LCD(a/b,1/5)=10\)
\(a/b=a/2:a=1\)
\(a/b=a/10;a=[1,2,3,4,5,6,7,8,9]\)
(2) b = 2 sufic
\(b=2:0<a/2<1…(a=integer)…0<a<b…0<a<2…a=1\)
Ans (B)
