Guesstimate | What is the number of laptops sold in Bangalore on an average routine day? | Lowe’s Interview Question

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Shashi Jain 55 years 2 Answers 2086 views Newbie 0

Answers ( 2 )

  1. Sai
    1
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    Preliminary Questions:
    1) Average Cost of Laptop -40000
    2)Are there any offers at present -No
    3) The average Life span of a Laptop – 5 Yrs

    The population of Banglore = 80 Lakhs
    Total Number of Households = 20 lakhs ( average family members =4)
    Upper class (10% ) =2 lakhs
    Middle class(30%) =6 lakhs
    Lower Middle class(40%) =8 lakhs
    Below Poverty Line(20%) =4 lakhs
    Since the average cost of the laptop is 40000 below poverty line can’t afford to pay , Lower middle-class people may have 1 laptop per two families, Middle-class people may have 1 laptop per family , Upper-class people might have 5 laptops per Two families ( These are the assumptions , You can change with respect to your thoughts)
    Total Laptops = 2*2.5 +6*1+8*0.5 =15 lakhs
    The average life span of laptop = 5 yrs
    Total number of laptops sold in an year = 16/5 = 3 lakhs
    Total Number of Laptops sold in a Day = 3/365 = 821 ≈ 820

    Total Number of laptops sold in a Day in Banglore = 820 laptops

  2. rachita
    0
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    ASSUMPTIONS –
    1) Let us assume total population of bangalore is = 8,000,000 2) The population is divided into two segments- family (Assuming family of 4 members) and individuals working in bangalore. Assuming they are 40%, and 60% respectively.
    3) The further class division of families are rich, middle class, poor and their percentage are 20%, 50%, and 30% respectively.
    4) The average number of laptops of purchased by rich are 4, 2 by middle class, 0 (as poor can’t afford laptop).
    5) An individual is working on laptop given by company is 60% (And then in that case if stop working then it will be replaced by company from extra stock of laptops) and 40% chance works on their own purchased laptop.
    6) In both the section of population it is assumed that 20% chance that laptop will stop working on the given day and 50% chance within the warantee period.
    7)Assuming all the events are independent of each other.

    The total number of families are = [ (8,000,000) * (40/100) ] / 4 = 3200,000/4 = 800,000
    — familes that are rich = 800,000 * (20/100) = 160,000
    — families that are poor = 800,000 * (30/100) = 240,000
    — families that are middle class = 800,00 * (50/100) = 400,000 The total number of laptops each family class have
    — rich = (160,000) * 4 , middle class = 400,000 ‘= 2, poor = 0 So, total laptop with families are = 640000 +800000 = 1440000 Out of which the number of laptops that will stop working on the given day are = 1440,000 * (20/100) = 288,000
    — Out of which have to puchase new one on the given day are = 288,000 * (50/100) = 144,000 –(1)
    The total number of individuals = [ 8,000,000 *( 60/100)] = 4800,000
    The segment of invidual working on their own purchased laptop = 4800,000 – (40/100) = 1920,000
    — Out of which the number of laptops stopped working on that day are = 1920,000 * (20/100) = 384,000 — (2)
    — Out of which the number of laptops that are outside warantee (that is need to purchase new one on the given day) are = 384,000 * (50/100) = 192,000

    Thus, total laptop purchased on the given day are = 144,000 + 384,000 = 528,000 — {adding (1) and (2)}

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