Raju purchases 10 pens for Rs 150 and Manish buys 7 pens for Rs 84. Can you say who got the pens cheaper?

Explanation

To determine who got the pens cheaper between Raju and Manish, we need to calculate the cost per pen for both individuals.

### Step 1: Calculate the cost per pen for Raju
Raju purchases 10 pens for Rs. 150.
To find the cost of one pen, we can use the formula:

\[
\text{Cost per pen} = \frac{\text{Total cost}}{\text{Number of pens}}
...