Question

Judith needed 10 gallons of gas last week. This week, Judith ended up needing 30% more than that amount. How much gas is that?

A) 3 gallons

B) 13 gallons

C) 3.3 gallons

D) 7 gallons

Answer 1

Judith needs 30% more than the 10 gallons from last week, which equals an additional 3 gallons. Hence, she needs a total of 13 gallons this week. The correct option is B.

Step-by-step explanation:

The question asks to calculate how much gasoline Judith needs this week if she requires 30% more than the 10 gallons she needed last week. To find this, we calculate 30% of 10 gallons and then add that to the original 10 gallons:

30% of 10 gallons = 0.30 × 10 gallons = 3 gallons.

Now, we add the additional 3 gallons to the initial 10 gallons:

10 gallons + 3 gallons = 13 gallons.

Therefore, Judith needs 13 gallons of gas this week, which means that the correct answer is B) 13 gallons.