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primary 6 | Maths
| Data Analysis
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May I know any other method to do this question? Thank you.
Tips for your PSLE. Assumption method always link with Guess and Check method. If you think question can be solved by Guess and Check method, normally can solve by using assumption method. Hope this helps.
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Total money 250×69.88=17470
250×55=13750 …boy average is 55
17470-13750=3720
Average different for boy and girl = 85-55 =30
Therefore, number of girl= 3720÷30= 124 girls.
Hope this helps.
10540-6930 = 3610.