Question

find the number of terms of the ap 15,18,21,.........60​

Answer 1

Answer:

24,27,30,33,36,39,42,45,48,51,54,57......

Step-by-step explanation:

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Answer 2

Answer:

Here is your Answer

Step-by-step explanation:

GIVEN

a=15,d=a2-a1=18-15=3

We know an=60(last term)

From the equation an=a+(n-1)d

60=15+(n-1)3

45=(n-1)3

(n-1)=45/3

n-1=15

n=15+1

n=16

hence 16 Terms

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