Question

3 coffee cost same as 5 toffees and also same as 7 chocolate. What is the ratio of cost of coffee: toffee: chocolate​

Answer 1

Step-by-step explanation:

3:5:7 is the ratio of the coffee:toffee: chocolate

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Answer 2

Given :

3 coffee cost same as 5 toffees and also same as 7 chocolate.

To Find :

ratio of cost of coffee: toffee: chocolate​

Step-by-step explanation:

let the cost of 1 coffee  = x ;

let the cost of 1 toffee = y ;

let the cost of 1 chocolate = z ;

now according to the question :

$3x = 5y = 7z$

let all these are equal to p ,

then ,

$x = p/3$ ,

$y = p/5$ ,

$z = p / 7$

hence ,

the ratio of cost of coffee: toffee: chocolate​ = $p/3 : p/5 : p/7$

                                                                        = $\frac{1}{3} : \frac{1}{5} : \frac{1}{7}$

                                                                        or

                                                                        = $35 : 21 : 15$

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