Question

8) A large number of adults and children went to the National Stadium
to celebrate National Day. Each adult received a goodie bag that
contained 15 items. Each child received a goodie bag that contained
10 items. A total of 525 000 items were given out. Find how many adults
and children were at the National Stadium.
(Hint: Use systematic listing)​

Answer 1

Step-by-step explanation:

There is certainly a problem with the question. I would either change the question or skip it.

For example, here are three answers

0 Adults, 52500 Children (Total 52500)

2 Adults, 52497 Children (Total 52499)

4 Adults, 52494 Children (Total 52498)

As you can see for every 2 Adults that increase there is a decrease of 3 Children. Why? Adults x 2 = 30 items. 30 items / 10 = 3 Children.

Typically such questions will give you one more bit of information such as the total people and you will be required to find out the number of adults or children. This is "Guess and Check".

Or the question could ask what is the maximum number of Children or what is the max adults. If max children, then the answer would be 52500.