Question 1

What is the greatest common factor of 56 and 92?

Accepted Answer

4

Answer

2

Answer

8

Answer

7

Question 2

What is the greatest common factor of 42 and 84 ?

Accepted Answer

42

Answer

7

Answer

21

Answer

84

Question 3

What is the least common multiple of $4$ and $10$?

Accepted Answer

$20$

Answer

$60$

Answer

$40$

Answer

$14$

Question 4

Two whole numbers have a least common multiple of $60.$

$\quad\bullet\,$ Each number is less than or equal to $12.$
$\quad\bullet\,$ The greatest common factor of the two numbers is $2.$

What are the two numbers?

Accepted Answer

$10$ and $12$

Answer

$5$ and $12$

Answer

$12$ and $15$

Answer

$6$ and $10$

Question 5

What is the greatest common factor of 36 and 90?

Accepted Answer

18

Answer

36

Answer

180

Answer

6

Question 6

At a bus station, buses begin their routes at 6:00 a.m. The schedule for two of the buses is based on the time intervals listed below.
$\quad\bullet$ Bus A has a long route and leaves the station every 75 minutes.
$\quad\bullet$ Bus B has a short route and leaves the station every 15 minutes.

What is the next time Bus A and Bus B will leave the bus station at the same time?

Accepted Answer

7:15 a.m.

Answer

7:30 a.m.

Answer

7:00 a.m.

Answer

8:30 a.m.

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