ARITHMETIC PROGRESSION (A.P.) ARITHMETIC PROGRESSIONS 05 Class 10th Mathematics (Practice Sheet) 1 What is nth term of a G.P.? A. an = a + (n - 1)d B. an = a + (n)d C. an = a × r n-1 D. an = a × r n 2 A sequence is called ________ if an + 1 = an × r. A. Arithmetic progression B. Geometric Progression C. Harmonic Progression D. Special Progression 3 In an arithmetic progression, if the first term (a) is 4 and the common difference (d) is -2, what is the 15th term (a15)? A. -30 B. -16 C. -24 D. 30 4 Consider the following pairs of numbers: 1. (8, 12) 2. (9, 11) 3. (6, 24) Which pairs of numbers have the same harmonic mean? A. 1 and 2 only B. 2 and 3 only C. 1 and 3 only D. 1, 2 and 3 5 If x is the harmonic mean between y and z, then which one of the following is correct? A. xy + xz - yz = 0 B. xy + xz - 2yz = 0 C. xy + xz + yz = 0 D. xy + xz - 4yz = 0 6 Find the nth term of AP: 1, 2, 3, 4, 5...., an, if the number of terms are 15. 7 Find the value of n, if a = 10, d = 5, an = 95. 8 Determine the 4th and 8th term of the harmonic progression 6, 4, 3,... 9 Compute the 16th term of HP if the 6th and 11th term of HP are 10 and 18, respectively. 10 Find the 50th odd number. Page 1 Email: Phone No: Website:
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