Question

Fill in the blanks : (i) In an A.P. given a = 5, d = 3, An = 50, find n The value of n is ….. 

16

-16

15

-15

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Answer 1

Answer:

my dear friend value of n=16

Explanation:

an=a + (n-1)d

50= 5+(n-1)3

50-5=(n-1)3

45=(n-1)3

45/3= n-1

15= n-1

15+1= n

16=n