2023 · Q97
P. Q, R, Sand T are five friends. The mean of weights of P, Q, R and S is 50 kg. whereas the mean of
- 1The weight of 7 is 50 kg. weights of Q, R, S and T is also 50 kg. Which of the following statements is/are correct?
- 2The weights of P and T are equal.
Select the correct answer using the code given below.
General Mental Ability, Quantitative Aptitude and StatisticsLogical reasoning
- A1 only
- B2 only
- CBoth 1 and 2
- DNeither 1 nor 2
Explanation
From (P+Q+R+S)/4 = 50 and (Q+R+S+T)/4 = 50, subtracting gives P = T, so statement 2 is correct. T's individual weight cannot be fixed from the two means alone, so statement 1 is not provable. Hence 2 only, option B.