Question

30 cupcakes are given. 1 of these is poisoned. if a rat eats a poisoned cupcake it will die after 10 hrs. you have 24 hrs to find out the poisoned cupcake. find out the minimum number of rats required for this task.

Answer 1

It won't depends on time.

We can use formula for solving this question.

Which is, $2^{m} \geq C$

Where, m no. of mice and C no. of cupcake.

We know, C =30

$2^{5} \geq 30$ = 32

Hence, after 5 mice it will greater than 30

Hence, minimum no. of mice needed is 5.