Question 322919: Four coins are picked out of a piggy bank that contains a collection of pennies, nickels, dimes, and quarters. Which of the following could not be the total value of the four coins, in cents?
(a) 15 (b) 25 (c) 35 (d) 45 (e) 55
Answer by Edwin McCravy(20060)   (Show Source):
You can put this solution on YOUR website!
The only correct choice is (a)
There is no way to have 15 cents with 4 coins.
You obviously can't use pennies or quarters.
If you use a dime, you'd have to have the remaining 5 cents with 3 coins,
and that's impossible.
If you use a nickel, you'd have to have the remaining 10 cents with 3 coins,
and that's also impossible.
All the others are possible:
3 nickels and 1 dime equals 25 cents.
1 nickel and 3 dimes equals 35 cents.
2 nickels, 1 dime, and 1 quarter equals 45 cents.
3 dimes and 1 quarter equals 55 cents.
Edwin
|
|
|
