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Several winter vacation homework problems in sixth grade mathematics (important process)
1, 5: 02: 59-4: 43: 24 =19: 35 =19× 60+35 =1175 (seconds)

7800×1175 = 9165000 (km)

A: He ran 9165,000 kilometers one way.

2, according to the six (a) class students to participate in extracurricular activities statistics, fill in the statistics.

Percentage of the total number of people

Exercise group (32 people) 64%

Music Group 8 (16%)

Art Group 10 (20%)