Percent practice

Percentage is a way of expressing a number, especially a ratio, as a fraction of 100. See also our verbal problems in percent or
examples1, examples2, examples3, examples4, examples5.

Calculate:

Number of examples:
Range of values:
Complexity:

10	-	70%	+	40%	=
16	+	50%	-	10%	=
70	+	30%	+	60%	=
55	-	40%	-	60%	=
96	+	50%	-	50%	=
80	+	70%	-	90%	=
80	-	30%	+	80%	=
40	+	60%	-	70%	=
8	+	50%	+	70%	=
60	-	50%	-	60%	=

Percentage in word math problems

• Iron
  Iron ore contains 54% iron. How much ore is needed to produce 23 tons of iron?
• Human buying irrationality
  I longer watch processors for Socket A on ebay, Athlon XP 1.86GHz with a PR rating of 2500+ costs $7 and Athlon XP 2.16Ghz with a PR rating of 3000+ currently cost $16. Calculate: About what percentage of the Athlon XP 2.16Ghz is powerful than Athlon XP 1
• Loss
  A bookstore purchased the biography of a well-known politician from a publisher for R15 per copy, but sales have been very poor. The manager has decided to mark the copies down to R12 each to make a quick sale. Calculate the loss on each book as a percent
• New refrigerator
  New refrigerator sells for 1024 USD, Monday will be 25% discount. How much USD will save, and what will be the price?
• Base, percents, value
  Base is 344084 which is 100 %. How many percent is 384177?
• Persons
  Persons surveyed:100 with the result: Volleyball=15% Baseball=9% Sepak Takraw=8% Pingpong=8% Basketball=60% Find the average of how many like Basketball and Volleyball. Would you please show your solution?
• Washing mashine
  Family buy a washing machine for 350e. Cash paid 280e. What percentage of the total price must still pay the washer?
• Trees
  A young tree is 16 inches tall. One year later, it is 20 inches tall. What is the percent increase in height?
• Savings and retirement
  The older sibling has saved 44% more euros than the youngest, which represents 22 euros. How many euros older brother has saved ?
• Cone and cube
  About what percentage hase cone with base radius r larger volume than same high cube with square base with edge length r?
• Competitors
  In the first round of slalom fell 15% of all competitors and in the second round another ten racers. Together, 40% of all competitors fell. What was the total number of competitors?
• Deposit is pesos
  Sally deposits Php.22,000 in her savings account. If the bank pays 1.5% interest per year, how much will she receive at the end of the year?
• Cows
  The agricultural cooperative has increased the number of housed cows by 14% to 285 units. By how many cows increased agricultural cooperative the number of cows?

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