lcm
Geometry
Ratios
100
  1. Find the LCM of 9 and 12.

36

100

What is the volume of a cube with side length 3 cm?

273

100

The ratio of the length to the width of a rectangle is 5:3. If the width is 9 cm, what is the length?

15 cm

200

A bakery sells cookies in packs of 8 and muffins in packs of 12. What is the smallest number of packs of each that the bakery must sell to have an equal number of cookies and muffins?

3 packs of cookies and 2 packs of muffins

200
  1. What is the name of a quadrilateral with exactly one pair of parallel sides?

Trapezoid

200

A car travels 300 miles in 5 hours. What is the ratio of miles to hours?

60:1

300
  1. Two gears in a machine rotate at different speeds. One gear completes a rotation every 12 seconds, and the other every 18 seconds. If they start together, after how many seconds will they align again?

36 seconds

300

What is the name of a polygon with 8 sides?

Octogon

300

The ratio of red marbles to blue marbles in a bag is 7:4. If there are 28 red marbles, how many blue marbles are there?

16 blue marbles

400

What is the lcm for 36 and 84?

12

400

What is the area of a rectangle with length 8 cm and width 3 cm?

24 cm²

400
  1. A class has 24 students. The ratio of boys to girls is 3:5. How many boys and girls are in the class?

Boys: 9

Girls: 15