What is the sum of the first 8 terms of an arithmetic progression if the first term is -19 and last term is 36? - Study24x7
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Abhishek Kumar
18 Jun 2020 10:35 PM study24x7 study24x7

What is the sum of the first 8 terms of an arithmetic progression if the first term is -19 and last term is 36?

A

51

B

68

C

85

D

102

Class 8 Class 9 Class 10
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  • Abhishek Kumar
    • B
    Like
    Reply 21 Jun 2020 04:30 PM
  • Shalu Chourasia
    • Sum= number of terms/2( 1st +last)term =8/2(-19+36) =4*17=68
    Like
    Reply 21 Jun 2020 04:08 PM
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