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Hi. This is the solution to your qn. I know it is long to the point it takes almost a page for it. But this is because I wrote it in a explanatory manner. Feel free to pick the important key points for your answer. If you find my solution helpful, please give me an upvote. Thanks. :)
Date Posted:
2 years ago
Another tutor had a similar solution as mine. You may refer to the solution that you think best make you understand or comfortable with.
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Hope this helps
Date Posted:
2 years ago
Thanks for taking time to solve this but my daughter does not know algebra yet. Sorry.
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Another working, hope this helps.
Date Posted:
2 years ago
Use ratio method, hope she can understand. This method, we look for what remain unchanged. For this question, we notice that total amount of money remain same as changed 50¢ coins with same value to 20¢ coins, value still 126
Thanks