3
3 is the hcf
Once with a remainder of 21
30 times with a remainder of 10
Factory ball 4 - Level 21 to 30 walkthrough - YouTubehere ya go!
51
210.(30 * 7 = 210)(21 * 10 = 210)
21/30 = 0.7
21/30 x 100 = 70. Therefore, 21 is 70 percent of 30.
21 is 30% of 70
21/30 x 100% = 70%
30