In a class of 50 students one who weighs 40 kg leaves the school and in his place a new student is admitted. Now the average weight of the class is reduced by 100 grams. Find the weight of the new student.

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In a class of 50 students one who weighs 40 kg leaves the school and in his place a new student is admitted. Now the average weight of the class is reduced by 100 grams. Find the weight of the new student.

A35 kg

B28 kg

C25 kg

D21 kg

Answer:

A. 35 kg

Read Explanation:

Total weight reduced = 100 x 50 - 5000 g = 5 kg Weight of new student = 40 - 5 = 35 kg