The manager of a newsagency conducted a survey to find out the most popular newspaper. he found that the sales ratio of the ‘daily news’ paper to ‘wacky news’ paper was 2 : 5 and the ratio of ‘wacky news’ to ‘truthful news’ sold was 4: 1.
(a) if 25 ‘truthful news’ papers were sold on friday, how many of ‘wacky news’ were sold?
(b) using your answer to (a) find how many ‘daily news’ papers were sold on the same day?

a) The  number of ‘Wacky News’  sold on Friday = 100

b) The number of Daily News sold on Friday = 40

Step-by-step explanation:

The ratio of         Daily News  :  Wacky News = 2   :    5

and the ratio of Wacky News : Truthful News  = 4   :  1

a) The number of 'Truthful News' papers sold on Friday  = 25

W  / T  = 4 / 1  ⇒ W = 4 T

Comparing both ratio of W, we get

Also, T =  25

So, W =  4T  =  4 x 25  = 100

Hence, the ‘Wacky News’  sold on Friday = 100

b) Now,  D / W  = 2 / 5  

and W  = 100

⇒

or, Now,

or, 'Daily News' sold on Friday = 40

Hence, the number of Daily News sold on Friday = 40

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.

median is the value separating the higher half of a data sample, a population or probablity distribution from the lower half.

step-by-step explanation:

say you have 3,8,7,3,1,9,8 order them from lowest to highest

if orderd it would be 1,3,3,7,8,8,9 now you take away from the lowest and the highest until you end up in the middle.

so you would remove the 1 and 9 leaving you with 5 digits remaining

when you've reached the middle that would be your answer so in this case the answer is 7

if there were two numbers left say 7 and 5 you'd and them together so 12 then divide by 2 witch would equal 6 so the answer would be 6

good luck on that project hoped i you at all