Maths
This question was asked in Ex 5.3, 3
a=3,n=8,s=192 find d

Vavi thamarai's image
Vavi thamarai
Oct. 6, 2017, 6:47 a.m.

Answers!

Jonali Medhi's image
Jonali Medhi
Feb. 4, 2018, 4:34 p.m.

Given

            a=3, n= 8, S= 192

             Now, as we know 

              S=a+(n-1)d

           Therefore, S= 3+(8-1)d

                     =>192=3+7d

                     =>192-3=7d

                     =>189=7d

                     =>d= 189÷7

                     =>d=27

Therefore, required d is 27.

Comment

Answer the question...

Vavi thamarai's image