A guy walks into a 7-11 store and selects four items to buy. The clerk at the counter informs the gentleman that the total cost of the four items is $7.11. He was completely surprised that the cost was the same as the name of the store. The clerk informed the man that he simply multiplied the cost of each item and arrived at the total. The customer calmly informed the clerk that the items should be added and not multiplied. The clerk then added the items together and informed the customer that the total was still exactly $7.11.
What are the exact costs of each item?
2007-01-16 16:17:17 · 5 answers · asked by victor v 2 in Science & Mathematics ➔ Mathematics
This answer is just a LITTLE bit more precise:
1.00, 2.50, 2.45, 1.16
2007-01-16 17:30:02 · answer #1 · answered by Ace 4 · 0⤊ 0⤋
Well,when multiplying by 4 and adding them gives the same amount,then cost of each item must be $7.11/4=$1.775
2007-01-17 00:33:31 · answer #2 · answered by alpha 7 · 0⤊ 0⤋
Here is the answer. The four items cost:
1.20
1.25
1.50
3.16
The sum and product are both 7.11.
Note, if you factor 711 you get 711 = 3*3*79.
So one of the prices has to be a multiple of 79 cents. The last one is:
4*0.79 = 3.16.
2007-01-17 04:13:54 · answer #3 · answered by Northstar 7 · 1⤊ 0⤋
the items are $1.00, 2.00, 2.87, and 1.24, unlike the others i actually multiplyed the 4 by each other, not by 4, like the others....
2007-01-17 01:07:58 · answer #4 · answered by doomsday45 2 · 0⤊ 0⤋
Three items were $1.78 and the fourth was $1.77. Or they cost $1.7775 each.
2007-01-17 00:28:20 · answer #5 · answered by DONNA M 3 · 0⤊ 0⤋