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04 Feb 2021, 09:45
Kudos
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A
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Difficulty:
15%
(low)
Question Stats:
76% (01:14) correct
24%
(01:33)
wrong
based on 376
sessions
History
Date
Time
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Not Attempted Yet
If x is a positive integer and x ≤ 30, what is the value of x?
(1) x can be written as the product of 3 different prime numbers each of which is greater than or equal to 2.
(2) x is divisible by 3 and 5.
(1) x can be written as the product of 3 different prime numbers each of which is greater than or equal to 2.
(2) x is divisible by 3 and 5.
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04 Feb 2021, 19:19
Kudos
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If x is a positive integer and x ≤ 30, what is the value of x?
(1) x can be written as the product of 3 different prime numbers each of which is greater than or equal to 2.
The least value of x will be 2*3*5=30.
As x cannot be greater than 30, x=30.
(2) x is divisible by 3 and 5.
x can be 15 or 30.
A
(1) x can be written as the product of 3 different prime numbers each of which is greater than or equal to 2.
The least value of x will be 2*3*5=30.
As x cannot be greater than 30, x=30.
(2) x is divisible by 3 and 5.
x can be 15 or 30.
A
06 Feb 2021, 10:32
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Bunuel
Statement 1:
The prime numbers are 2, 3, 5, 7 ... but x has to be less than 30. If we take the three lowest primes we already have \(2*3*5 = 30\) so that is our only option. Sufficient.
Statement 2:
We can have x = 15 or x = 30. Insufficient.
Ans: A
