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Given that E= { Natural number up to 30 } `P={x/x = 4y +1 ,x in E } and Q={x/x = 6y +x in E}` Find `n(P cap Q)`

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Given that E= { Natural number up to 30 } `P={x/x = 4y +1 ,x in E } and Q={x/x = 6y +x in E}` Find `n(P cap Q)`
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Correct Answer - B
P = {5, 9, 13, 17, 21. 25, 29}
Q={7, 13, 19, 25}
`P cap Q={13, 25}`
`therefore n(P cap Q)=2`
Hence , the correct option is ( b)
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