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Q1. If 7th and 13th terms of an A.P. be 34 and 64 respectively, then its 18th term is 


(a) 87 


(b) 88 


(c) 89 


(d) 90 


Q2. If the sum of P terms of an A.P. is q and the sum of q terms is p, then the sum of p + q terms will be 


Q3. If the sum of n terms of an A.P. be 3n2 + n and its common difference is 6, then its first term is  


Q4. The first and last term of an A.P. are 1 and 11. If the sum of its terms is 36, then the number of terms will be 


Q5. If the sum of n terms of an A.P. is 3n2 + 5n then which of its terms is 164? 


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