Sagot :
11. 15% of 300 is 45
0.15 * 300 = 45
12. 40% of 650 is 260
0.40 * 650 = 260
13. n% of 400 is 48, then N is 12
10% of 400 is 40
12% of 400 is 48
14. 160 is n% of 500
10% of 500 is 50
20% of 500 is 100
25% of 500 is 150
26% of 500 is 160
n% = 26
15. 24% of n is 216
216/ 0.24= 900
n = 900