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06 Jan 2020, 06:16
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If a and b are positive integers and the ratio a/b is expressed as a decimal, is a/b a terminating decimal?
(1) 50 < a < 60
(2) b = 3
Are You Up For the Challenge: 700 Level Questions
Updated on: 08 Jan 2020, 07:43
Originally posted by freedom128 on 06 Jan 2020, 06:46.
Last edited by freedom128 on 08 Jan 2020, 07:43, edited 9 times in total.
Last edited by freedom128 on 08 Jan 2020, 07:43, edited 9 times in total.
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1)
If a=51 and b=3, then a/b=17 is a terminating decimal.
If a=52 and b=3, then a/b=17.3333... is a non-terminating decimal.
NOT SUFFICIENT
2) b = 3
Same explanation as above
NOT SUFFICIENT
1)+2)
Same explanation as above
NOT SUFFICIENT
FINAL ANSWER IS (E)
Posted from my mobile device
If a=51 and b=3, then a/b=17 is a terminating decimal.
If a=52 and b=3, then a/b=17.3333... is a non-terminating decimal.
NOT SUFFICIENT
2) b = 3
Same explanation as above
NOT SUFFICIENT
1)+2)
Same explanation as above
NOT SUFFICIENT
FINAL ANSWER IS (E)
Posted from my mobile device
General Discussion
Quote:
If a and b are positive integers and the ratio a/b is expressed as a decimal, is a/b a terminating decimal?
(1) 50 < a < 60
(2) b = 3
(1) 50 < a < 60
(2) b = 3
Terminating decimals are those in which the denominator is a multiple of 2, 5 or both.
(note: an integer is a terminating decimal)
(1) 50 < a < 60 insufic
(2) b = 3 sufic
b=3 and a=9, a/b=3 terminating
b=3 and a=1, a/b=1/3 repeating
Ans (E)
