Relier Pairs ARITHMETIC PROGRESSIONSVersion en ligne Reviews the knowledge on Arithmetic progressions par Inderpreet Vij 1 The (n – 1)th term of an A.P. is given by 7,12,17, 22,… is 2 The number of terms of an A.P. 3, 7, 11, 15... to be taken so that the sum is 406 is 3 In an AP, if d = –4, n = 7, an = 4, then a is 4 If the common difference of an AP is 5, then what is a18 – a13? 5 The sum of all two digit odd numbers is 2475 28 5n - 3 25 14