Q. 18 E5.0( 1 Vote )

In the following A.P., find the missing terms:

7, ,,,27

Answer :

Here, a = 7, n = 5 and l = 27


We have,


l = a + (n – 1)d


27 = 7 + (5 – 1)d


27 = 7 + 4d


20 = 4d



So, the missing terms are –


a2 = a + d = 7 + 5 = 12


a3 = a + 2d = 7 + 2(5) = 7 + 10 = 17


a4 = a + 3d = 7 + 3(5) = 7 + 15 = 22


Hence, the missing terms are 12, 17 and 22


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