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:

88%	of	98	=
78%	of	25	=
30%	of	14	=
71%	of	46	=
15%	of	100	=
75%	of	63	=
81%	of	82	=
33%	of	75	=
82%	of	53	=
84%	of	87	=

Percentage in word math problems

• Election mathematics
  In elections, 8 political parties received this share of voters: strana A ; 56 % strana B ; 11.9 % strana C ; 11.7 % strana D ; 8.8 % strana E ; 6.3 % strana F ; 5.1 % strana G ; 0.2 % Calculate what the shares acquired in the parliament if a quorum is 5%
• Discounts on rail (ZSSK)
  The railway company ZSSK offers a discount of 40% (SENIOR RAILPLUS) for 9.9 Eur/year. Calculate the real discount rate as a percentage, where passengers will travel 5 Eur per week.
• Demographics
  The population grew in the city in 10 years from 30000 to 34000. What is the average annual percentage increase in population?
• Cone and cube
  About what percentage has cone with base radius r larger volume than a same high cube with square base with edge length r?
• Sea water
  Seawater contains about 6.5% salt. How many dm³ of distilled water must we pour into 21 dm³ of seawater to get water with 1.2% salt?
• Acids
  64% acid is made from the same acid of two different concentrations. The amount of weaker acid to the stronger acid is in ratio 2:1. What was the concentration of the weaker acid if the stronger had 98% concentration?
• Sea water
  Mixing 63 kg of seawater with 43 kg rainwater is created water containing 2.7% salt. How much percent of seawater contains salt?
• Hop-garden
  The length of the rectangular hop garden Mr. Smith increased by 25% and its width by 25%. What is the percentage change in the area of the hop garden?
• 100 %
  How much is 100% if 82 % is 77?
• Suit
  The suit cost 124 euros. How much cost the pants if it is 30% cheaper than the jacket?
• Addends
  The number 681 is divided into two addends. The first was 9 greater than 60% of the second. Determine these addends.
• Ace
  We pulled out one card from a complete set of playing cards (32 cards). What is the probability of pulling the ace?
• Accidents
  The count of accidents in 1991 caused 8444 women, which is 9%. How many men caused the accidents?
• Simple interest 3
  Find the simple interest if 11928 USD at 2% for 10 weeks.
• Sales off
  What was its original price if a sweater sells for $ 10 after a 25% markdown?

more math problems »