21 is 12% of what number?

If you would like to know 12% of what number is 21, you can calculate this using the following steps:

12% of what number is 21
12% of x is 21
12% * x = 21
12/100 * x = 21    /*100/12
x = 21 * 100 / 12
x = 175

Result: 12% of 175 is 21.

Yes. there is a constant ratio of number of calories to gram of protein.12/3=24/4=32/8=44/11=4

the distance between the school and her home is 3.6km.

explanation

12 mins = 0.2 hours = 1/5 hour

54 ÷ 3 = 18km per hour

1/5 of 18 = 3.6km per 12 mins