Cancer

Of the 80 people 50 people ill cancer. What percentage of people isn't ill?

Correct answer:

p =  37.5 %

Step-by-step explanation:

$p=100\cdot (1-50\mathrm{/}80)={\displaystyle \frac{75}{2}}={\displaystyle \frac{75}{2}}\mathrm{\%}=37.5\mathrm{\%}$

Try another example

Related math problems and questions:

• Washing mashine
  Family buy a washing machine for 350e. Cash paid 280e. What percentage of the total price must still pay the washer?
• Percentage 10
  52 shorts and missed 13. Calculate percentage
• Reverse Pythagorean theorem
  Given are lengths of the sides of the triangles. Decide which one is rectangular: Δ ABC: 77 dm, 85 dm, 36 dm ... Δ DEF: 55 dm, 82 dm, 61 dm ... Δ GHI: 24 mm, 25 mm, 7 mm ... Δ JKL: 32 dm, 51 dm, 82 dm ... Δ MNO: 51 dm, 45 dm,
• Simple interest
  Peter put into bank 853 euros deposit. After 7 years on account overall was 984 euro. What was the interest rate if bank add simple interest?
• Price reduction
  The price of the camera is 654 USD on sale. They reduced its price to 411 USD. Calculate the percentage reduction in the price of the camera.
• Bureaucracy
  23 people attended the office. 9 of them completed the questionnaire. What is the percentage of all people?
• Percent chaining
  Calculate 20% from 70% from 80 km
• Four pupils
  Four pupils divided $ 1485 so that the second received 50% less than the first, the third 1/2 less than a fourth, and fourth $ 154 less than the first. How much money had each of them?
• Percentage of waste
  In a square plate with side 75 cm we cut 4 same circles. Calculate the percentage of waste.
• Money
  Everyone complains about the lack of money. In fact, there is no shortage of money, but the relative scarcity of goods and things that people buy for the money. Calculate what percentage of the price of all goods and services rose immediately, if everyone
• Geography tests
  On three 150-point geography tests, you earned grades of 88%, 94%, and 90%. The final test is worth 250 points. What percent do you need on the final to earn 93% of the total points on all tests?
• Waiting room
  In the waiting room are people and flies. Together they have 15 heads and 50 legs (fly has 6 legs). How many people and flies are in the waiting room?
• Training
  The table contains tennis training schedule for Saturday's younger students during the winter indoor season. Before the start of the summer season is preparing a new training schedule. Tomas Kucera will be able to practice only in the morning, sisters Kov
• Percentages
  52 is what percent of 93?
• Climb in percentage
  The height difference between points A and B is 475 m. Calculate the percentage of route climbing if the horizontal distance places A, B is 7.4 km.
• Transformer
  Solve the textbook problems - transformer: a) N1 = 40, N2 = 80, U2 = 80 V, U1 =? b) N1 = 400, U1 = 200 V, U2 = 50 V, N2 =?
• Car
  The car goes from point A to point B at speed 86 km/h and back 53 km/h. If it goes there and back at speed 67 km/h trip would take 10 minutes shorter. What is the distance between points A and B?