Question

Cost of 2 copies is 25 , then cost of 20 copies is -

Answer 1

Answer:

cost of 2 copies = 25

Step-by-step explanation:

cost of 20 copies = 25× 10

= 250

hope it helps u

Answer 2

Cost of 2 copies is 25 , then cost of 20 copies is 250

Given :

Cost of 2 copies is 25

To find :

Cost of 20 copies

Solution :

Step 1 of 2 :

Form the equation

Here it is given that Cost of 2 copies is 25

Let Cost of 20 copies is x

Then by the given condition

20 : x = 2 : 25

Step 2 of 2 :

Find the required cost

$\displaystyle \sf{20 : x = 2 : 25 }$

$\displaystyle \sf{ \implies \frac{20}{x} = \frac{2}{25} }$

$\displaystyle \sf{ \implies 2x = 20 \times 25}$

$\displaystyle \sf{ \implies x = \frac{20 \times 25}{2} }$

$\displaystyle \sf{ \implies x = 10 \times 25}$

$\displaystyle \sf{ \implies x = 250}$

Hence Cost of 20 copies is 250