Question

400 people are asked if they drink the tea
1/10 say yes and 20% of the people who say yes drink at least 3 cups each day complete the frequency

Answer 1

Answer:

8 people drink at least 3 cups of tea daily

Step-by-step explanation:

People who drink tea

= 1/10 of 400

=40

People who drink at least 3 cups daily

=20% of 40

=8

(I didn't exactly get what you meant)

Answer 2

The number of people who drink at least 3 cups daily  = 8

Step-by-step explanation:

Given,

The total number of people = 400

To find, the number of people who drink at least 3 cups daily  = ?

∴ People who drink the tea

= $\dfrac{1}{10}$ of 400  

= $\dfrac{1}{10}$ × 400  

= 40

People who drink at least 3 cups daily

= 20 % of 40

= $\dfrac{20\times 40}{100}$

= 8

Thus, the number of people who drink at least 3 cups daily  = 8