Question

in a school a survey of 400 students 100 were listed as taking apple juice 150 taking orange juice and 75 were listed as taking both apple and orange juice
a) how many students take apple juice or orange juice
b) how many take apple juice alone but not orange juice
c) how many students take neither apple juice nor orange juice
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Answer 1

Step-by-step explanation:

nth term of an A.P (an) = pn + q

To find: Common Difference (d)

Proof: We know that,

an = a + (n – 1)d

⇒ pn + q = a + (n – 1)d [given]

⇒ pn + q – a = (n – 1)d

Answer 2

Answer:

Here is the explanation and answer:

Step-by-step explanation:

a) how many students take apple juice or orange juice?

75 students took apple or orange juice.

b) how many take apple juice alone but not orange juice?

100 students take apple juice alone but not orange juice.

c) how many students take neither apple juice nor orange juice?

Total number of students = 400

Number of students that take 'any' (apple or orange or both apple and orange) juice, = 100 + 150 + 75 = 325 students,

Therefore, students that do not take any juice at "all" = 400 - 325 = 75 students.

Ans = 75 students take neither apple juice nor orange juice.

Thankyou,

Hope this helped...