# Today my father h

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  method used is called direct proportions method

formula:- (i)direct method---- (ii)indirect or inverse proportions or inverse proportions xy=k

GIVEN :-15 kg of rice cost RS 390

1 kg of rice cost will be 17 kg of rice cost will be therefore RS 442 will be the cost of 17 kg rice.

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