Question

how many terms of sequence 36 ,30, 24, 18 ..... must br taken so that the sum mqya be 120 . explain yhe reason for two answers​

Answer 1

Answer:

5 terms

Step-by-step explanation:

formula of the sequence = x ,  x- 6 , x - 12 , x - 18 , etc ...

here x = 36.

36 + 36 - 6 + 36 - 12 + 36 - 18 = 36 + 30 + 24 + 18

                                                 = 108

120 - 108 = 12

12 = x - 24

so , 5 terms of the sequence must be taken..