Question

Phil is 5 times older than Kiara but Bill is 5 times older than Phil Oscar is twice as old as Bill the total of all of them is 81 how old is Phil?

Answer 1

P = 5K

B = 5P
O = 2B
P + B + O + K = 81
P + 5P + 2B + P/5 = 81
P + 5P + 10P + 0.2P = 81
P = 81/16.2 = 5