Question

express 20 cm as a percent 1m 80cm

Answer 1

Answer:

Step-by-step explanation:

100 cm = 1m

1m 80cm = 1*100+80 = 180 cm

so 20 cm / 180 cm * 100

= 100/9 %

= 11.1%

Answer 2

20cm is 11⅑ % of 1m 80cm

Given : The smaller length = 20 cm ; The bigger length = 1m 80cm

To find : Expressing the smaller length as a percent of the bigger length.

Solution :

We can simply solve this mathematical problem by using the following mathematical process. (our goal is to calculate the required percentage)

Smaller length = 20 cm

Bigger length = 1m 80cm = (1×100)cm + 80cm = 180cm

Now, our required percentage :

= 100 × (Smaller length / Bigger length)

= 100 × (20/180)

= (100/9)%

= 11⅑ %

Hence, 20 cm is 11⅑ % of 1m 80cm