ABOUT LITRES WORD PROBLEM

Question

How many litres of green mango beans costing ¥4.25/litre must be mixed with 150 litres of yellow mango beans costing ¥6.50/litre to make a mixture which will cost ¥5.00/litre?

Answer 1

Set up a table with ingredient, cost per l., no of l.,and total cost

Total cost is amount of l * cost per l.

 

 

green mango     4.25/l           x            4.25x

yellow mango    6.5/l            150          6.5/l( 150)

mixture             5/l               x+150      5( x + 150)

 

In the second column, the total amount of the mixture is the amount of green mango plus the amount of yellow mango.

Your equation comes from adding up the last column:  the total cost of the green + total cost of yellow =total cost of the mixture

 

4.25 x + 6.5 (150) = 5( x + 150)

Solve from there.

Hope this helped.

Mary