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Find the cardinal number of the followin...

Find the cardinal number of the following sets
(i) M={p,q,r,s,t,u}
(ii) `P={x: x=3n+2, n in W and x lt 15}`
(iii) `Q={y: y=(4)/(3n), n in N and 2 lt n le 5}`
(iv) `R={"x : x is an integer, "x in Z and -5 le x lt 5}`
(v) S= The set of all leap years between 1882 and 1906.

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