​$$\frac{1}{20}$$​ is what percentage of $$\frac{2}{70}$$​?

If 30% of 50% of 4/7 of a number is 303, find the number.

1/30 is what percentage of 1/90 ?

1/30 is what percentage of 1/80 (rounded off to two decimal places)?

$$\frac 1{20}$$​ is what percentage of $$\frac {10}{60}$$​?

If 20% of a number is added to 84, then the result is the same number. 75% of the same number is:

​$$\frac{1}{20}$$​ is what percentage of $$\frac{2}{70}$$​?

If 60% of 30% of $$\frac13$$​ of a number is 204, find the number.

If 20% of a number is added to 96, then the result is the same number. 80% of the same number is:

If 20% of a number is added to 72, then the result is the same number. 70% of the same number is:

If 20% of a number is added to 78, then the result is the same number. 70% of the same number is: