Question

I) 20% of that number is 1/5 th of that number ii) three-fifth of that number is less by 18 of that number.

Answer 1

i) Let the no. be x
then, 20x/100=1x/5
1x/5=1x/5
=0
ii)Let the no. be x
then,3x/5=x-18
3x/5-x =-18
-2x/5=-18
x=18×5/2
=45