Walmart sells thermometers 4 and hot water bottles 3 In Dece
     Walmart sells thermometers ($4) and hot water bottles ($3). In December, Walmart\'s total sales were $1, 012. Customers bought 2 times as many thermometers as hot water bottles. How many of each did Walmart sell?   
  
  Solution
Let the bottle sold be X.
Total Cost of bottles sold = 3X.
then thermometers sold will be 2X.
Total Cost of thermometers sold =4(2X)=8X
Then
Total Cost of bottles sold + Total Cost of thermometers sold = 1012
3X + 8X =1012
11X =1012
X=1012/11
X =92
So Total number of bottles sold is 92.
Then Total number of thermometer sold is 2x92=184.

