Guesstimate | What is the number of laptops sold in Bangalore on an average routine day? | Lowe’s Interview Question
Question
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
It will take less than 1 minute to register for lifetime. Bonus Tip - We don't send OTP to your email id Make Sure to use your own email id for free books and giveaways
Answers ( 2 )
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
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)}