ZS Associates Guess Estimate Questions and Answers 2024

1.  What is the guess estimate for the number of laptops sold in Delhi on an average routine day?

Solution:-

Take two sides of this into consideration – demand and supply. I assume demand </= supply, since the location listed is Delhi. Let us concentrate, then, on the demand side, because it is the guiding power.

Starting with the Delhi population
= X = 20 million.

A laptop is used by a student or a working professional, i.e. persons belonging to the 18-45 age group, representing approximately 70% of the population of Delhi.

Assuming a laptop’s average cost is about 30k INR and assuming that a typical Indian spends around 10 percent of the annual revenue on electronic devices, a laptop buyer’s annual revenue could be about 4 lacs.This comprises about 70 percent of the population of a city like Delhi.

Assume that 70 percent of this population currently has a laptop and thatin a given year just 30 percent expect to purchase a new one.

Assume a PC will be purchased by 20 percent (20 percent as laptop popularity increases), a laptop will be bought by 80 percent.

So average number of laptops sold in a given year in Delhi = 0.7*0.7*0.3*0.8*X = 2,35,200.

In a year = 235200/365 = 645 = Y

Now,

• On weekdays, this number will be around 80% of it = 516
• On weekends, this number might shoot up by 30% = 838.5
• On festivals like Diwali and Christmas, sales might increase by 40% = 903 .

    2. You have two buckets that hold 3 lit. and 5 lit. How do you fill 4 lit?

Solution:-

Firstly Fill the 3L bucket FULL. Then transfer this water to a 5L bucket. It now has 3L. Fill 3L bucket FULL again. Transfer to a 5L bucket till it fills completely. Now the 3L bucket has 1L. Throw away 5L of water. Transfer 1L water from 3L to 5L. Fill 3L bucket FULL again. Transfer to a 5L bucket to get 4L in the bucket.