How many numbers are there between 1 and 101 which are multiples of either 5 or 7 or both 5
and 7?

36
34
32
20
[spoiler]OA=32[/spoiler]
consecutives again
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- theCodeToGMAT
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Multiple of "5" => 5 .... 100 = 20
Multiple of "7" => 7 .... 98 = 14
Common Multiples
5x7x1 = 35
5x7x2 = 70
So, Total numbers = 20+14-2 = 32
Multiple of "7" => 7 .... 98 = 14
Common Multiples
5x7x1 = 35
5x7x2 = 70
So, Total numbers = 20+14-2 = 32
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- ganeshrkamath
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A = multiples of 5 between 1 and 101 = 20Johnrohit wrote:How many numbers are there between 1 and 101 which are multiples of either 5 or 7 or both 5
and 7?

36
34
32
20
[spoiler]OA=32[/spoiler]
B = multiples of 7 between 1 and 101 = 14
C = multiples of 7*5 between 1 and 101 = 2
Required sum = A + B - C = 20 + 14 - 2 = 32
Choose C
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Kelley School of Business (Class of 2016)
GMAT Score: 750 V40 Q51 AWA 5 IR 8
https://www.beatthegmat.com/first-attemp ... tml#688494