Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Need solution for RD Sharma Maths Class 12 Chapter 17 Maxima and Minima Excercise Case Study Based Questions question 3 subquestion (v)

Need solution for RD Sharma Maths Class 12 Chapter 17 Maxima and Minima Excercise Case Study Based Questions question 3 subquestion (v)

Answers (1)

Answer:  160,000

Hint: use concept of maxima and minima.

Solution:

Given that there are 5000 subscribers and each subscriber pays 3000 Rs as rent per year

Let us assume that x rupees are increased in the rent.

So the total cost received by the company C is

\begin{aligned} &C=(3000+x)(5000-x) \\ &C=15000000+2000 x-x^{2} \end{aligned}

Differentiate it with respect to x, We get

\begin{aligned} &\frac{\mathrm{dc}}{\mathrm{dx}}=2000-2 \mathrm{x} \\ & \end{aligned}

2000-2 \mathrm{x}=0 \\

\mathrm{x}=1000

So the maximum cost required by the company is   4000 \times 4000=160,000

Posted by

infoexpert27

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

PM Modi's Pariksha Pe Charcha 2025 to be held next month, registrations open till January 14
anam-khan

CBSE Board Exams 2025: Online portal for availing exemptions by CWSN students opens
anam-khan

Board Exams: States agree to equivalence; no question paper ‘jumbling’ from next year, says PARAKH CEO

Latest Question