What number when increased by 90 percent of itself equals 156?

Answer 1

N*(1+90%) = 156 that is N*1.9 = 156 so N = 156/1.9 = 82.1053 approx.

Another Answer:-

It could be 15.6 because 156 minus 90% = 15.6

And so: (156-15.6)/156 times 100 = 90% increase

Answer 2

82