40 percent of 10 = 4
To check the answer: 20% of 10 = 2
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if you mean 75% of 40: 75% equals 3/4 so 3/4 of 40 is 30; or 30/40
40 percent as a decimal equals .4 so multiply .4 times 65 to get what 40% of 65 is. 0.4 * 65 = 26.
For this problem, assume q is 100. So, if p is 40 percent, that would mean 40/100 which equals .4 or 40 percent. So, 100/40 equal 2.5 or 250 percent. If p is 40 percent of q, then q is 250 percent of p.
Because 10% of 40 is 4... so half that will give you 5% which is 2
To find 90% of 40, just multiply .90 times 40, which equals 36. Since 10% of 40 is 4, then 90% of 40 are 4*9=36.