Six family members P, Q, R, S, T, and U have different weights. The third heaviest person weighs 40 kg. Q's weight is an odd number and Q is light...
Question
Six family members P, Q, R, S, T, and U have different weights. The third heaviest person weighs 40 kg. Q's weight is an odd number and Q is lighter than S but heavier than R. The number of people lighter than S is one more than the number of people lighter than P. T is heavier than both R and U. T weighs 20 kg more than P, who is heavier than Q. The second lightest person is not Q.
If R's weight is 15 kg less than P and 5 kg more than U, what is the sum of the weights of R and U?