Fermi Test iconFermi Question - Water Usage

Fermi Question
This Fermi Question is only available to subscribers.

xxx xxxx xxxxxx xx xxxxx xxxx xx xxxxxxx xxxxxxxxx xxx xx x xxxxx?

One

Gain unlimited access.

    Unlimited access to all Math Tests, Sequences, Assessments and Games

    Unlimited access to all premium Brainteasers and Fermi Questions

    Unlock all difficulties of the Market Making Games