How many positive integers less than 60 are equal to the product of a positive multiple of 5 and an even number?
A. 4
B. 5
C. 9
D. 10
E. 11
[spoiler]OA=B.[/spoiler]
Is there a strategic approach to solving this PS question? I would like some help. Thanks.
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How many positive integers less than 60 are equal to
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Gmat_mission
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An even multiple of 5 is divisible by 2 and 5.Gmat_mission wrote:How many positive integers less than 60 are equal to the product of a positive multiple of 5 and an even number?
A. 4
B. 5
C. 9
D. 10
E. 11
Any integer divisible by 2 and 5 is a MULTIPLE OF 10.
The following multiples of 10 are less than 60:
10, 20, 30, 40, 50.
Total options = 5.
The correct answer is B.
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We should note that "the product of a positive multiple of 5 and an even number" is the same thing as "an even multiple of 5". The positive integers less than 60 that are also even multiples of 5 are 10, 20, 30, 40, and 50, so there are 5 integers.Gmat_mission wrote:How many positive integers less than 60 are equal to the product of a positive multiple of 5 and an even number?
A. 4
B. 5
C. 9
D. 10
E. 11
Answer: B
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