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Average Practice Test 3

Question : 6 of 40

Marks: +1, -0

Solution:

Total weight of the 1st group = (45 × 5) kg = 225 kg

Total weight of the 2nd group = (47 × 5) kg = 235 kg

Total weight of 30 students = (50 × 30) kg = 1,500 kg

∴ Average weight of the remaining students

=\frac{1500-(225+235)}{20}

=\frac{1500-460}{20}

= 52 kg

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