It is: 25%
16 correct out of 20 questions is 80%
16/20 each question is 5% so 4 wrong and 16 correct.
The answer is 1. 5 % is 5/100 So , 20 * (5/100) = (20*5)/100 = 100/100 = 1 By decimals : 5% = 0.05 and 0.05 x 20 = 1
percent of 1/20 = 5%1/20 * 100% = 5%
80% of 20 = 20*80/100 = 16
80
It is: 55%
16 of them.
Both are correct, depending on the context. If decrease is a noun then decrease of is correct. eg This year we have seen a decrease of 20 percent. If decrease is a verb then decrease by 20 percent is correct. eg This year we can decrease the price by 20 percent.
Each question is worth 5%, to get that figure divide 100 by 20. So multiply 15 by 5 which gives you 75. So 15 out of 20 equals 75%
5 percent of (20 percent) = 0.01 or 1 percent.0.05 x 0.20 = 0.01 = 1%
The percentage of 4 out of 5 is 100 percent divided by 5 = 20 percent. 4 times 20 percent = 80 percent. (20%= 1/5%) + (20% = 2/5%) = 40% which is the same as 2 out of 5+ (20% = 3/5%) = 60% which is the same as 3 out of 5 + 20% = 80% which is the same as 4 out of 5+ 20% *the 5th percent = 100% hard to follow but here it is :P