Question

A shopkeeper orders 1000 pencils at 0.23 dollar each. How much does the shopkeeper pay in total?

Answer 1

Hint: Here we will apply the simple approach of the unitary method to get the answer. The total price the shopkeeper paid will be equal to the product of one pencil and the total number of pencils ordered. We already have the values, so the result of their multiplication will be the answer.

Complete step by step solution:
Here, we have been given that the cost of each pencil ordered by the shopkeeper is 0.23 dollar. We are asked to find the total amount the shopkeeper paid for ordering 1000 pencils.
Here, we need to use the basic unitary method to get the total amount. According to this process the total amount paid will be equal to the product of one pencil and the total number of pencils ordered. So we have,
$\Rightarrow $ Total amount paid = cost of one pencil $\times $ total number of pencils
We have, cost of one pencil = 0.23 dollars and total number of pencils = 1000. Substituting these values in the above relation we get,
$\Rightarrow $ Total amount paid = 0.23 $\times $ 1000
$\Rightarrow $ Total amount paid = 230
Hence, the total amount paid by the shopkeeper is 230 dollars.

Note: You may note that here the price of one pencil was already given and that is why we were not required to find it using extra calculations. Sometimes the cost of a certain number of pencils will be given and we will be asked to find the cost of another certain number of pencils, so in such a case first we will find the cost of one pencil and then proceed as we did in the above solution.