Question

20*54/100=9.20 if so 20*x/100=10.20

Answer 1

20*x/100 = 10.2

x= 51 as

20x/100 = 1020/100

which means 2x/10 = 1020/100

so x = 1020/100 * 10/2 which is 51

Answer 2

20*X=10.20*100
X= 1020/20
X= 51