8.4
When 40 is decreased by 30% the result is 28.
30 percent of 28 is 8.4.
40
To find 30 percent of a number, multiply the number by 0.3. In this instance, 0.3 x 84 = 25.2. Therefore, 30 percent of 84 is equal to 25.2.
93%
Let that number be x. So we have, x - 0.3x = 28 0.7x = 28 7x = 280 x = 40 Check.
the number is 120 and so its 400% of 30
92.4/3.3 = 28 Therefore, the number that 92.4 is 330 percent of, is 28.
28
28
30% of 280= 30% * 280= 0.3 * 280= 84
30% of 28 is 8.4