If 45% of people like tea, 35% like coffee, and 10% like both, what percentage l
Practice Questions
Q1
If 45% of people like tea, 35% like coffee, and 10% like both, what percentage like neither tea nor coffee?
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Questions & Step-by-Step Solutions
If 45% of people like tea, 35% like coffee, and 10% like both, what percentage like neither tea nor coffee?
Step 1: Identify the percentage of people who like tea, which is 45%.
Step 2: Identify the percentage of people who like coffee, which is 35%.
Step 3: Identify the percentage of people who like both tea and coffee, which is 10%.
Step 4: To find the percentage of people who like either tea or coffee, add the percentages of tea and coffee, then subtract the percentage of those who like both: 45% + 35% - 10%.
Step 5: Calculate the result from Step 4: 45% + 35% = 80%, then 80% - 10% = 70%.
Step 6: To find the percentage of people who like neither tea nor coffee, subtract the percentage from Step 5 from 100%: 100% - 70%.
Step 7: Calculate the result from Step 6: 100% - 70% = 30%.
Set Theory – Understanding the union and intersection of sets to calculate percentages.
Percentage Calculation – Calculating percentages based on given data and applying the principle of inclusion-exclusion.