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Solution


Q.

Ananya saves Rs. 24 during the first month Rs. 30 in the second month and Rs. 36 in the third month. She continues to save in this manner.

On the basis of above information answer the following questions.

Q.  What is the common difference of an AP whose nth term is 8 – 5n

Ans.

(-5)

an=8-5n

a1=8-5=3

a2=8-10=-2⇒d=a2-a1=-2-3=-5