Problems of the Week - October 19 to October 24

Rewards for Problems of the week:

5 points for the correct answer at your level; 10 points for the next level; 20 points each for 2+ levels up. 

Lower Elementary:

Question:  Avery is making a fall scene collage out of paper shapes in art class. She cuts a piece of construction paper that is 10 inches long and 10 inches wide into 1–inch squares. Next, she cuts each square in half to make paper triangles. How many paper triangles does Avery have?

Upper Elementary:

Question:  Twenty-four students split up into groups for music class. A third of the students are in the percussion group. Half of the students are in the choir group. The rest of the students are in the guitar group. How many students are there in the guitar group?

Middle School:

Question:  Paulina needs a new uniform for gym class. She buys a tee shirt that costs $12.50, a pair of shorts that cost $20.00, and a pair of sneakers that cost $31.40. A 10% sales tax is applied to her purchase. How much money does Paulina spend on her new gym uniform?

Algebra and Up:

Question:  There are 125% as many students in sculpture class as there are in drawing class. If there are 15 more students in sculpture class than there are in drawing class, then how many students are in drawing class?

Challenge problem to take home. 20 points for the correct answer. 

Sarai takes her dog to the veterinarian and is given two different medications:

When they get home at 12:00, Sarai gives her dog a dose of both medications. What time will it be the next time Sarai gives her dog both medications at the same time?