# How much do you expect?

Probability Level 1

Suppose you are sitting in an exam hall for an IQ-test containing 5 True/False questions and 5 multiple-choice questions, each having 4 different choices such that only one of the choices is right.

The probability of scoring 100% in the test by selecting options randomly is $\frac{p}{q}$ where $p$ and $q$ are integers.

$\left\lfloor \log _{ 2 }{ (p+q) } \right\rfloor \quad =\quad ?$

×