Question

There are 34 students in a class. The average weight of the class is 35 kg. If two new students joined the class, the average weight increases by 2 kg. Find the total weight of the two new students who joined the class?

• A. 105 kg
• B. 142 kg
• C. 127 kg
• D. 152 kg

Answer 1

Answer:

B. 142 kg

Total sum of weights = 34 × 35 = 1190 kg Let the total weight of the two new students be ‘x’ kg. When two new students are included average weight increases by 2 kg. ⇒ 36 × (35 + 2) = 1190 + x ⇒ 1332 = 1190 + x ⇒ x = 142 kg