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