0 votes 0 votes How to solve this type of questions? Let S be the set of integers such that 1. 100<=x<=200 2. x is odd 3. x is divisible by 3 but not by 7 How many elements does S contain? Quantitative Aptitude general-aptitude quantitative-aptitude made-easy-booklet + – Jyoti Kumari97 asked Jan 2, 2019 • edited Mar 5, 2019 by ajaysoni1924 Jyoti Kumari97 1.0k views answer comment Share Follow See all 7 Comments See all 7 7 Comments reply Magma commented Jan 2, 2019 reply Follow Share 29 ?? 0 votes 0 votes Jyoti Kumari97 commented Jan 3, 2019 reply Follow Share @Magma no the correct answer to the above question is 13 0 votes 0 votes Magma commented Jan 3, 2019 reply Follow Share OH sorry I didn't read " x is odd" part 0 votes 0 votes Magma commented Jan 3, 2019 reply Follow Share 100 to 200 --> 101 terms 51 are even numbers and 50 are odd numbers No of element divisible by 3 - no of element divisible by both 7 and 3 = $\frac{50}{3} - \frac{50}{21}$ = 14 I got 14 ..where it goes wrong :/ ?? 0 votes 0 votes Prateek Raghuvanshi commented Jan 3, 2019 reply Follow Share @Magma There are 3 numbers 105,147,189 which is also divisible by 7 not two 1 votes 1 votes Magma commented Jan 3, 2019 reply Follow Share @Prateek Raghuvanshi yeah correct but where I did go wrong ? why it's is not working ?? .... in xam time we didn't enough time to find the numbers can you tell me ?? 0 votes 0 votes Prateek Raghuvanshi commented Jan 3, 2019 reply Follow Share @Magma see here https://www.quora.com/Let-S-be-the-set-of-integer-such-that-1-X-is-greater-than-100-but-less-than-200-2-X-is-odd-3-X-is-divisible-by-3-but-not-seven-How-many-elements-does-S-contain 0 votes 0 votes Please log in or register to add a comment.