Maths
This question was asked in Ex 5.3, 2

How to find n

Sahil Chhabra's image
Sahil Chhabra
Jan. 27, 2018, 2:50 p.m.

Answers!

Lakshmi Thota's image
Lakshmi Thota
Feb. 17, 2018, 12:15 p.m.

84=7+(n-1)7/2

84-7=(n-1)7/2

(n-1)=77×2/7

(n-1)=22

n=22+1=23

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