Traditional Culture Encyclopedia - Travel guide - Party A, Party B and Party C travel to other places by bus.

Party A, Party B and Party C travel to other places by bus.

Suit: The weight of free luggage is X kilograms.

We take the cost of the overweight part per kilogram as the condition of the equation.

( 150-3X)÷4 =( 150-X)÷8

Multiply both sides by 8,

2( 150-3X)= 150-X

300-6X= 150-X

150=5X, x = 30kg kg.

Each person can carry 30 kilograms of luggage for free.