# Estimation - Number of ATMs in India

### Product Management Interview: Guess estimate the total number of ATMs in India

**Known:** The population of India - **1.3 Billion**

**Assumption -** Let the **Rural : Urban split be 70 : 30 %** of the total population.

**Population Split - **

Therefore, the population split *approximately* comes to,

**Rural = 900 Million**

**Urban = 400 Million**

**Household Split - **

Next, we will calculate the number of Households in India,

**Assuming**, there are **4 people in a household** for both urban and rural,

*(Ideally, we would assume, 3 for Urban and 5 for Rural)*

Household split come to,

**Rural = (900 Million / 4) = 230 Million**

**Urban = (400 Million / 4) = 100 Million**

**Total number of ATM cardholders in India - **

Next, letâ€™s estimate the total number of ATM cardholders in India,

Assuming,

70% of Rural household has ATM cards and,

90% of Urban Households has ATM cards

This comes down to, (70% of 230 Million)

= **160 Million ATM cards in Rural** and (90% of 100 Million)

= **90 Million ATM cards in Urban**.

Now, letâ€™s assume -

In Urban, let say 10% of household has 2 ATMs and rest of the 90% has 1 ATM,

= (10% * 90M)*2 + (90% * 90M)*1= 18 + 81 M = ~ 100M ATM users

In Rural, let say 100% of household has 1 ATMs,

= (100% * 160M)*1 = 160 M ATM users

**Now Assuming, **

**1 ATM **is mapped to** ~500 **users in the** Urban **area**, & ~2000 **users in** Rural **area

**Total number of ATMs in Urban + Rural India = **

= 100M/500 + 160M/2000

= 2,00,000 + 80,000

= **2,80,000 ATMs are there in India.**

The actual number of ATMs in India is around ~2,40,000

Practice More:List of all Guess-Estimation questions

To help you with your Product Manager interview preparations, we have compiled a complete list of the most askedÂ **Product Management Interview** **Questions** and **Answers at companies like Facebook, Google, Amazon, Microsoft, Netflix, etc. answered by PMs at FAANG.**

Now get, **Full Access to All PM Interview Questions and Detailed Answers by FAANG PMs for a Year! Get the Yearly Subscription now!** ðŸ‘‡

**Preferred Payment Methods:**

**Google Pay / PhonePe**at UPI Id -**mypminterview@oksbi****Paypal**at**mypminterview@gmail.com**

Once done, email us the payment receipt at **mypminterview@gmail.com**

How to Answer Behavioral Interview Screening Questions? [FREE]

Describe your day-to-day activities as a Product Manager [FREE]

Behavioral Interview Questions - Storytelling Framework [FREE]

What's the one thing that excites you the most about Product Management?

How do you take product decisions involving multiple stakeholders with consent?

How do you use research & data to guide your day-to-day decisions?

What tools do you use in your day-to-day activities as a Product Manager?

How would you keep developers in your team motivated to turn out quality work?

Tell me about a time you had to make a decision to make short-term sacrifices for long-term gains.

How will you manage a team where team members are more experienced than you?

Which apps do you use on your cellphone on a daily basis and why? [FREE]

How much storage space do you need to store all the information from Google maps?

Estimate the Number of WhatsApp Chats occurring in India [FREE]

Estimate the Number of Hours spent on Smart Phones by all Indians

Estimate the Number of Golf balls that can fit in a School Bus

Estimate the Number of Tennis balls you can fit in an Aircraft

Estimate the Number of Refrigerators sold in India every year

Estimate the storage space is required to host all the images of Google Street View

Estimate the Number of Queries Answered by Google per Second

Common Mistakes to avoid while Answering Estimation Questions

**Product Launch**

**A/B Testing**

**Product Strategy**

**Business Case Studies**[FREE]

There is an error in the line "In Rural, let say 10% of household has 1 ATMs", instead of 10% it should say 100%.