Question

Give the right answer? ​

Answer 1

Answer

12% is the right answer

Answer 2

5000[(1+r%)²-1]-5000*2*r%=72

5000[((100+r)/100)²-1]100r=72

5000*(10000+r²+200r-10000)/10000-100r=72

r²+200r-200r=144

r²=144

r=12