Consider the Q and A. Q: Luisa drives 10 miles to the grocery store, 6 miles to the mall, 5 miles to the pet store, then 9 miles back home. One gallon of gas can be used to drive 15 miles. If one gallon of gas costs $3.50, what is the total cost of the gas for Luisa’s entire trip?
A: 7
What is the step-by-step reasoning process?
Step-by-step reasoning process: Luisa drives a total of 10 + 6 + 5 + 9 = 30 miles. Luisa uses 30 / 15 = 2 gallons of gas for her trip. The total cost of the gas for Luisa’s trip is 2 * $3.50 = $7.

Consider the Q and A. Q: Roland needs a length of thread to complete an exercise. He has a 12cm long thread but his teacher says he needs an additional three-quarters of what he has. What is the total length required?
A: 21
What is the step-by-step reasoning process?
Step-by-step reasoning process: An additional three - quarters of 12cm is needed which is 12cm * (3 / 4) = 9cm. The total length required is 12cm + 9cm = 21cm.

Consider the Q and A. Q: A café has a few orders to cook and also needs to makes sandwiches for a group of customers that arrived. 3 local offices have each ordered 10 bacon sandwiches and half of the group that has arrived have asked for 4 bacon sandwiches each. If the café makes a total of 54 bacon sandwiches, how many customers are in the group of customers that arrived?
A: 12
What is the step-by-step reasoning process?
Step-by-step reasoning process: The offices ordered a total of 3 offices * 10 sandwiches each = 30 sandwiches. So the group of customers must have ordered 54 total sandwiches – 30 sandwiches for the offices = 24 sandwiches. This is a total of 24 sandwiches / 4 sandwiches per customer = 6 customers who ordered a sandwich. As only half the group ordered a bacon sandwich, the entire group must have consisted of 6 customers * 2 = 12 customers.

Consider the Q and A. Q: Matt can write 10 words a minute with his right hand and 7 words a minute with his left hand. How many words would Matt write in 5 minutes with his right hand than with his left?
A: 15
What is the step-by-step reasoning process?
Step-by-step reasoning process:
The difference in writing speed is 10 words / minute - 7 words / minute = 3 words / minute. Matt can write 3 words / minute x 5 minutes = 15 more words with his right hand.