One sixth of a number is exactly equal to four ninth of 36. This number is ()
This number is 36 × 4 / 9 △ 1 / 6
=16×6
=96
A number plus 30 percent equals 78. What's 3 / 5 of this number
Let this number be X
X+30%X=78
(1+30%)X=78
1.3X=78
X=60
60*3/5=36