Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 1: Problem 16

In a collage of 400 students every students read 5 newspapers and every newspaper is read by 80 students. The number of newspaper is (a) 25 (b) at the most 20 (c) at the most 25 (d) at least 25

Short Answer

Expert verified
The number of newspapers in the college is 25 (option a), calculated as follows: Total number of newspapers read by all students = 400 × 5 = 2000. Number of newspapers in the college = 2000 ÷ 80 = 25.

Step by step solution

01

Understand the given information

First, let's take a look at the given information: 1. There are 400 students in the college. 2. Every student reads 5 newspapers. 3. Every newspaper is read by 80 students.
02

Calculate the total number of newspapers read by all students

Since every student reads 5 newspapers, we can find the total number of newspapers read by all 400 students by multiplying the number of students by the number of newspapers each student reads: Total number of newspapers read by all students = Number of students × Number of newspapers each student reads Total number of newspapers read by all students = 400 × 5 = 2000
03

Calculate the number of newspapers in the college

Now, we know that every newspaper is read by 80 students. Therefore, to find out the number of unique newspapers in the college, we can divide the total number of newspapers read by all students by the number of students that read each newspaper: Number of newspapers in the college = Total number of newspapers read by all students ÷ Number of students that read each newspaper Number of newspapers in the college = 2000 ÷ 80 = 25 The number of newspapers in the college is 25, which corresponds to option (a).

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

If \(\mathrm{f}(\mathrm{x})=\cos (\log \mathrm{x})\) then \(\mathrm{f}(\mathrm{x}) \cdot \mathrm{f}(\mathrm{y})-(1 / 2)[\mathrm{f}(\mathrm{x} / \mathrm{y})+\mathrm{f}(\mathrm{xy})]\) has the value (a) 1 (b) \(-1\) (c) 0 (d) 3

Let \(\mathrm{R}\) be a relation in \(\mathrm{N}\) defined by \(\mathrm{R}=\left\\{\left(1+\mathrm{x}, 1+\mathrm{x}^{2}\right) / \mathrm{x} \leq 5, \mathrm{x} \in \mathrm{N}\right\\}\) which of the following is false? (a) \(\mathrm{R}=\\{(2,2),(3,5),(4,10),(5,17),(6,25)\\}\) (b) Domain of \(\mathrm{R}=\\{2,3,4,5,6\\}\) (c) Range of \(\mathrm{R}=\\{2,5,10,17,26\\}\) (d) (b) and (c) are true

If \(f: R \rightarrow R, f(x)=x^{2}+1\) then \(f^{-1}(-2) \cup f^{-1}(17) \ldots\) (a) \(\\{\pm 4\\}\) (b) \(\\{\pm 1, \pm 4\\}\) (c) \(\\{4\\}\) (d) \(\\{1,4\\}\)

Let \(\mathrm{X}=\\{(\mathrm{x}, \mathrm{y}, \mathrm{z}) / \mathrm{x}, \mathrm{y}, \mathrm{z} \in \mathrm{N}, \mathrm{x}+\mathrm{y}+\mathrm{z}=10, \mathrm{x}<\mathrm{y}<\mathrm{z}\\}\) and \(\mathrm{Y}=\\{(\mathrm{x}, \mathrm{y}, \mathrm{z}) / \mathrm{x}, \mathrm{y}, \mathrm{z} \in \mathrm{N}, \mathrm{y}=|\mathrm{x}-\mathrm{z}|\\}\) then \(\mathrm{X} \cap \mathrm{Y}\) is equal to (a) \(\\{(2,3,5)\\}\) (b) \(\\{(1,4,5)\\}\) (c) \(\\{(5,1,4)\\}\) (d) \(\\{(2,3,5),(1,4,5)\\}\)

Let \(\mathrm{f}(\mathrm{x})=\sec \mathrm{x}+\tan \mathrm{x}, \mathrm{g}(\mathrm{x})=[(\tan \mathrm{x}) /\\{1-\sec (\mathrm{x})\\}]\) Statement \(-1 \mathrm{~g}\) is an odd function Statement \(-2 \mathrm{f}\) is neither an odd function nor an even function (a) Statement lis true (b) Statement 2 is true (c) 1 and 2 both are true (d) 1 and 2 both are false
See all solutions

Recommended explanations on English Textbooks

Morphology

Read Explanation

Language and Social Groups

Read Explanation

Phonetics

Read Explanation

Rhetorical Analysis Essay

Read Explanation

History of English Language

Read Explanation

Linguistic Terms

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free