2023-2024 - Challenge Set #4

Eric rode the train from noon to 8:20 pm today. How many minutes long was Eric's train trip?

Mathematical Equivalence

ON

Mathematical Equivalence

ON

In the addition problem in picture, the same letters represent the same digit, and different letters represent different digits. What digit does the letter E represent?

Mathematical Equivalence

ON

Madison and Kai dontated a total of $405 to a cancer center. Madison dontated twice as much money as Kai. How much money did Kai donate to the cancer center? (No labels)

Mathematical Equivalence

ON

In Robotsville, if a robot is on a construction site, then it wears a helmet. Which one of the following statements must also be true in Robotsville?

• If a robot isn't on a construction site, then it doesn't wear a helmet.

• If a robot doesn't wear a helmet, then it isn't on a construction site.

• If a robot is in an office, it doesn't wear a helmet.

• If a robot wears a helmet, then it is on a contruction site.

Carlos has $4.00 in dimes and nickels. He has twice as many dimes as nickels. How many dimes does he have?

Mathematical Equivalence

ON

How many different ways are there to place the given four number cards in the four squares shown, one card in each square, so that the sum of the two numbers in each row is a multiple of 3 and the sum of the two numbers in each column is also a multiple of 3?

Mathematical Equivalence

ON

Four workers can harvest a corn field in 12 hours. If the job needs to completed in 8 hours, how many workers must be assigned to the job? NOTE: All workers work at the same constant rate.

Mathematical Equivalence

ON

Avery, Brandon, Carmen and Divya went to a bakery together. Avery spent $4.90 on one bagel, one roll and one cup of coffee. Brandon spent $5.20 on one bagel, one roll and one glass of juice. Carmen spent $3.90 on one muffin and one glass of juice. Divya bought one muffin and one cup of coffee. How much money did Divya spend at the bakery? Note: All items of the same type cost the same price.

Mathematical Equivalence

ON

Next January, Anthony plans to put moneyinto a new bank account. Every month after, he plans to put $5 more into the bank acount than the amount he put in the previous month. How much money should he put into a new bank account in January if he wants to have a total of $990 by the end of the year, assuming he doesn't take any money out from the bank account?

Mathematical Equivalence

ON