Question
A total of 770 pupils sat for the Chinese mock test. 12 of the boys and 78 of the girls passed the mock test. The same number of girls and boys failed the mock test. How many more girls than boys passed the mock test?
4 m

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A total of 770 pupils sat for the Chinese mock test. 12 of the boys and 78 of the girls passed the mock test. The same number of girls and boys failed the mock test. How many more girls than boys passed the mock test?