Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

## Post a reply

Write your message and submit
|
Options

## Topic review (newest first)

bobbym
2013-06-04 20:55:35

Hi;

There are no integer solutions to that problem.

I think the problem is a typo. Now  total amount is $21.80 has a solution. bob bundy 2013-06-04 04:09:20 hi ran, Welcome to the forum. I've made two equations from this information and tried to solve the problem. But the number of$0.50 coins has come out as a fraction so either I've made a silly error or the information has a typo.  Have a look and see if you can sort it out;  the method should work.

First some letters for the number of coins.  I'm from the UK so I couldn't remember what you call those coins so for $0.50 I'm using H and for$0.20 I'm using F.

First equation based on number of coins

Second based on value of coins

Multiply the first by 2 and subtract the result from the second

Now if 73 was in the 3x table that would give H and F would quickly follow.  But you cannot have H not a whole number so I'm stuck.

Bob

ran
2013-06-04 02:32:06

Hi hopefully you guys can help me with this problem sum.

there are 45 coins in the piggy bank.

total amount is $21.90 there are 7$1 coins in the piggy bank.

how many $0.50 and$0.20 coins are there in the piggy bank?

## Board footer

Powered by FluxBB