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:

The number of examples:
Range of values:
Complexity:

85	+	80%	=
30	-	70%	=
55	-	40%	=
86	+	50%	=
90	+	20%	=
55	+	80%	=
30	+	90%	=
100	+	10%	=
25	+	20%	=
8	-	50%	=

Percentage in word math problems

• Dimensions of a fabric
  How many m² of fabric is needed to make a tent of a regular 3-sided prism if it is necessary to count on a 2% reserve of fabric? Dimensions - 2 m 1.6 m and height 1.4 m
• Probability - tickets
  What is the probability when you have 25 tickets in 5000 that you do not win the first (one) prize?
• Percent calculation
  Calculate 12% if 41% is 74.
• Chocolates left
  What is the equation for Mark? He had 84 boxes of candy to sell, half of which were dark chocolate and the other half white chocolate. He sold 75% of dark chocolate and 40% white. How many did you have left over?
• Web server
  Calculate how many average minutes the web server is unavailable a year if the availability is 99%.
• What is 26
  What is the selling price of goods listed at P580 less discounts of 20%,12 1/2%, and 5.5%?
• Simple interest
  Peter put into bank 853 euros deposit. After 7 years on account, overall was 984 euro. What was the interest rate if the bank added simple interest?
• Efficiency
  A certain device consumes 50 kW and delivers 17 kW. Find its efficiency.
• Gon functions
  Decide which numbers (values of trigonometric functions) are positive or negative (or zero). Positive mark +1 and negative -1.
• Sweets
  Mom bought a box of sweets for their children. The whole package of 102 sweets is divided among 3 their children so that each child receives the most and she remains the least sweets. How many sweets are left for Mom?
• Simple interest 3
  Find the simple interest if 11928 USD at 2% for 10 weeks.
• Flowerbed
  On the flowerbed were planted 310 flowers - pansies and crayons during the first week, wilts quarter of pansies and an eighth crayons, which is 20% of all flowers. How many pansies were planted on the flowerbed?
• Green - Red
  We have 4 bags. Each consists of one green and 2 red balls. From each, we pull just one ball. What is the probability that we don't pull any green ball?
• Goods
  To the market is introducing a new product, the first week is sold at a reduced price. 8 products are sold at an entry price same as 5 products at the normal price. How many percent is the reduced price less than the current price for this product?
• Purchase
  The mother bought five boxes of milk and 7 kg of potatoes and paid a total of CZK 147. The aunt bought seven boxes of milk and 3 kg of potatoes and paid 131 CZK. What is the price of one carton of milk and 1 kg of potatoes? How would CZK together have bee

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