Simplifying Ratio of Different Units

Q.

The sides of a triangle are in the ratio 3:2:4. If the perimeter of the triangle is 36 cm, then the length of its longest side is ___ cm.

1. 12 cm

2. 16 cm

3. 18 cm

4. 20 cm

Q.

In a regular polygon, the ratio of the inner and outer angle is 14 : 4. How many sides does this polygon have ?

1. 9

2. 7

3. 10

4. 3

Q. A line segment 63 cm long is to be divided into two parts in the ratio 3 : 4. Find the length of each part.

Q. A boy who is 90 cm tall is standing beside a tree that is 2 m tall. What is the ratio of the height of the boy to the height of the tree?

1. 45 : 1
2. 9 : 2
3. 2 : 9
4. 9 : 20

Q. If a man is 170 cm tall and a tree nearby is 2m tall, what is the ratio of the man’s height to the tree’s height?

1. 1 : 85
2. 17 : 20
3. 85 : 1
4. 3 : 4

Q. The ratio of 30 minutes to 2 hours is .

1. 4:5
2. 1:4
3. 5:17
4. 5:6