1) The first term of an arithmetic sequence is equal to 200 and the common difference is equal to -10. Find the value of the 20th term a) 20 b) 15 c) 30 d) 10 2) The 12th and 17th terms of an arithmetic sequence are 38 and 53 respectively. Find the 39th term.  a) 115 b) 119 c) 154 d) 109 3) Find the sum of the first 10 natural numbers. a) 55 b) 45 c) 25 d) 10 4) In the arithmetic sequence –3, 4, 11, 18, …, find the sum of the first 20 terms. a) 1270 b) 1140 c) 1320 d) 1160 5) The sum of the first n terms of an arithmetic sequence is given by Sn = 4n2 + n. Find the first term and the common difference. a) a=5 , d=6 b) a=5 , d=5 c) a=8 , d=5 d) a=5 , d=8 6) In the arithmetic sequence 3,7,11,15,..., find the 8th term. a) 31 b) 34 c) 38 d) 40 7) In the arithmetic sequence ln x, ln 3x, ln 9x, ln 27x,..., find the 5th term. a) ln 36x b) ln 64x c) ln 81x d) ln 49x 8) In the arithmetic sequence, the 4th and 8th terms are 16 and 56 respectively. Find the first term and common difference a) a= -14 , d=10 b) a= -7 , d=10 c) a= 14 , d=10 d) a=7 , d= -10 9) In the arithmetic sequence 1,6,11,16,..., find the sum of the first 12 terms. a) 334 b) 352 c) 324 d) 342 10) Find the number of terms in the arithmetic sequence 8, 11, 14, ..., 302 a) 102 b) 99 c) 103 d) 97

Arithmetic Sequence (Matriculation)

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