Question

Divy and two of her friends planned to spend $120 each on gas for their road trip. Then, another friend decided to join them. If all friends re-divided the cost of gas equally among them, how much did each friend spend?

(A) $80
(B) $90
(C) $100
(D) $110
(E) $120

Answer 1

90
Divide 120 by 3
120/3

Answer 2

Each friend spent 80. So, the correct answer is (A) 80.

Initially, Divy and her two friends planned to spend 120 each on gas.

Since there were three friends, the total cost was

120 * 2 = 240

When another friend decided to join them, making it four friends in total, they need to re-divide the cost equally.

The new cost per person is

240 / 3 = 80

Therefore, each friend spent 80.

So, the correct answer is (A) 80.