Multiple choice

The average weight of 5 people increases by 6 kg when a new person comes in place of one of them weighing 65 kg. How much does the new person weigh?

  1. 30 kg

  2. 35 kg

  3. 95 kg

  4. Data inadequate

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The total weight increases by 5 * 6 = 30 kg. The new person must weigh 65 + 30 = 95 kg.

AI explanation

The total weight increase is calculated by multiplying the average increase by the number of people, giving 5 times 6 = 30 kg. For the average to increase by this amount, the new person must weigh 30 kg more than the person they replaced. Adding this 30 kg difference to the replaced person's weight of 65 kg gives the new person's weight of 95 kg. The result is 95 kg.