Turn on thread page Beta
    • Thread Starter
    Offline

    0
    ReputationRep:
    in the first month after opening a mobile phone shop, a shop sold 280 phones. it will increase by x phones per month for the next 35months.
    so for the second month - (280 + 2x)

    the shop sets target of 17000 to be sold over the 36 months.
    find the least value of x required to achieve this.


    ------------------------------------------------
    • Thread Starter
    Offline

    0
    ReputationRep:
    anyone???
    Offline

    2
    ReputationRep:
    Let start with these:

    Assume that U(0) = 280 is the first month
    U(1) = 280 + x ( because it increases per month in next 35 months)
    U(2) = 280 + 2x
    ...
    U(35) = 280 + 35x

    To get the success for the shop, the equation must be:
    Offline

    2
    ReputationRep:
    Let start with these:

    Assume that U(0) = 280 is the first month
    U(1) = 280 + x ( because it increases per month in next 35 months)
    U(2) = 280 + 2x
    ...
    U(35) = 280 + 35x

    To get the success for the shop, the equation must be:
    280 + 35x = 17000
    <=> x = 477.7

    It means that x must be integer so the answer is 478

    Is that right???
    • Thread Starter
    Offline

    0
    ReputationRep:
    thats wat i was thinkin but its c1 so i wasnt sure whether they wud use such odd values..
 
 
 
Turn on thread page Beta
Updated: March 2, 2005

University open days

  • University of Buckingham
    Psychology Taster Tutorial Undergraduate
    Fri, 14 Dec '18
  • University of Lincoln
    Mini Open Day at the Brayford Campus Undergraduate
    Wed, 19 Dec '18
  • University of East Anglia
    UEA Mini Open Day Undergraduate
    Fri, 4 Jan '19
Poll
Were you ever put in isolation at school?
Useful resources

Make your revision easier

Maths

Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

Equations

How to use LaTex

Writing equations the easy way

Equations

Best calculators for A level Maths

Tips on which model to get

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.