InterviewSolution
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InterviewSolution
| 1. |
Find the number of terms in each of the following finite ap I 3,8,13,..............,78 |
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Answer» A=1,d=3-1=2,an=78,n=?A+(N-1)D=AN1+(N-1)2=781+2n-2=782n=78+2-12n=79n=79/2Ans A=1D=3-1=2AN=78AN= A+(N-1)D78=1+2N-279=2NN=39.5TH TERM (APPROX) OR 40TH TERM |
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