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a
191
b
193
c
211
d
None of these
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Correct option is A
First common term a =11LCM of two common difference = L.C.M of 4 and 5Common difference , d = 20Tn=a+(n−1)dT10=11+9d=11+9(20)=11+180=191Similar Questions
The sum of terms of an is The number of term which equals 159, is
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