
By: SHLer (offline) Thursday, October 28 2010 @ 09:00 PM CDT (Read 1877 times)



SHLer 
Need help to solve the following problem sum:
Mrs. Raju bought 20 bottles of milk & 5 boxes of cornflakes from the supermarket. If she had bought these items at 20% discount, the amount of money she saved could buy another 3 more boxes of cornflakes at the usual price. The usual price of a bottle of milk was $2.15. What was the usual price of a box of cornflakes?

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Registered: 10/01/10 Posts: 6





By: GIM (offline) Sunday, November 07 2010 @ 07:25 AM CST



GIM 
20 bottles of milk cost : 20 x $2.15 = $43
20%Savings from all milk : 0.2 x $43 = $8.60
20%Savings from all cornflakes : 0.2 x 5C = C (assuming C is 1 box of cornflakes)
Total savings for both items : $8.60 + C
Since savings can buy 3 boxes of cornflakes, therefore $8.60 + C = 3C
3C  C = $8.60
2C = $8.60
C = $4.30
Usual price of a box of cornflakes was $4.30

Regular Member
Registered: 11/07/10 Posts: 70



