Option B.
Step-by-step explanation:
Irrational number: It can not be expressed in the form of p/q, where p,q are integers and q≠0. For example :
Money cannot be expressed in square root of a prime number but sometimes we get not recurring non repeating decimal amount. So, budgeting with money has less chances to get an irrational number.
Area of a circle is
where, r is radius.
It contains which is an irrational number. So, it is most likely o encounter an irrational number.
Area of square is square of its side. So, it has less chances to get an irrational number.
Buying food that has a cost per pound has less chances to get an irrational number because monitory terms are generally rational.
Therefore, the correct option is B.
31.8
Step-by-step explanation:
60-28.2 = 31.8