Question

A‌ ‌bookstore‌ ‌advertises‌ ‌5‌ ‌notebooks‌ ‌for‌ ‌\[\$7.50\].‌ ‌How‌ ‌much‌ ‌would‌ ‌one‌ ‌notebook‌ ‌cost‌ ‌at‌ ‌this‌ ‌rate?‌

Answer 1

Hint: We are given the question stating the price of 5 notebooks as \[\$7.50\] and we are asked to find the price of one notebook. Since, we are asked to find the price of one notebook, so we will use the unitary method. For the price of one notebook we will divide the price of 5 notebooks, \[\$7.50\] by 5. And we will get the price of one notebook.

Complete step by step solution:
According to the given question, we are given the price of 5 notebooks as \[\$7.50\] and using the given information, we have to find the price of one notebook.
We can see that from the price of 5 notebooks, we have to find the price of one notebook, so we will simply use the unitary method.
So, first writing what we are given in the question,
Price of 5 notebooks \[\to \$7.50\]
So, for one notebook the price is \[\to \dfrac{7.50}{5}=\$1.50\]
Therefore, as per the rate for 5 notebooks given, the price of one notebook is \[\$1.50\].

Note: Don’t get confused with the way the question is asked. The price of 5 notebooks is given as \[\$7.50\], don’t further multiply \[\$7.50\] by 5 in order to get the total price. The given price itself is the total cost of the 5 notebooks, so for the price of one notebook we will divide \[\$7.50\] by 5.