Question 238019
Mary is twice Wang's age & Kat is 2 years younger the Wang. The sum total of their ages is 46. How old is each person?

Mary's age = M
Wang's age = W
Kat's age = K

Mary is twice Wang's age  - - > M = 2W
Kat is 2 years younger the Wang. - - -> K = W-2

Sum = 46 - - > M + W + K = 46
               2W + W + (W-2) = 46
               4W - 2 = 46
                4W    = 48
                 W    =  48/4  = 12
M = 2W , then M = 24
K = W - 2 , then K = 12-2 = 10

Mary's age = 24  years
Wang's age = 12  years
Kat's age = 10   years