In a book of 105 pages written by Subhash uncle, there are in average 25 lines in each page and there are in average 8 words in each line. Let’s work out using the method of the Rule of Three how many pages will be there in the book if there are 30 lines in each page having 10 words in each line.
theorem1:-
The Rule of Three is a Mathematical Rule that allows you to solve problems based on proportions. By having three numbers: a, b, c,
(a)Direct proportions rule of 3:-
if a
b
c
then 
(b)inverse proportions rule of 3:-
if a
b
c
then 
formula:- (i)direct method----
(ii)indirect or inverse proportions xy=k
given:-
method used is called indirect or inverse proportions method
book content =no. of page x no. of line x no .of word
=105x25x8=21000
again
book content =no. of page x no. of line x no .of word
21000=no. of page x30x10
no.of page =70.
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